./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 01:10:20,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 01:10:20,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 01:10:20,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 01:10:20,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 01:10:20,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 01:10:20,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 01:10:20,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 01:10:20,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 01:10:20,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 01:10:20,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 01:10:20,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 01:10:20,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 01:10:20,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 01:10:20,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 01:10:20,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 01:10:20,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 01:10:20,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 01:10:20,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 01:10:20,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 01:10:20,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 01:10:20,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 01:10:20,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 01:10:20,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 01:10:20,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 01:10:20,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 01:10:20,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 01:10:20,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 01:10:20,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 01:10:20,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 01:10:20,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 01:10:20,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 01:10:20,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 01:10:20,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 01:10:20,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 01:10:20,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 01:10:20,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 01:10:20,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 01:10:20,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 01:10:20,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 01:10:20,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 01:10:20,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 01:10:20,602 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 01:10:20,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 01:10:20,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 01:10:20,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 01:10:20,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 01:10:20,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 01:10:20,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 01:10:20,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 01:10:20,605 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 01:10:20,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 01:10:20,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 01:10:20,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 01:10:20,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 01:10:20,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 01:10:20,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 01:10:20,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 01:10:20,607 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 01:10:20,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 01:10:20,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 01:10:20,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 01:10:20,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 01:10:20,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:10:20,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 01:10:20,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 01:10:20,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 01:10:20,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 01:10:20,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 01:10:20,609 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 01:10:20,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 01:10:20,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 01:10:20,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 01:10:20,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 [2021-11-17 01:10:20,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 01:10:20,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 01:10:20,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 01:10:20,828 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 01:10:20,828 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 01:10:20,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-11-17 01:10:20,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff0db994/88ef385c5e844b06818e279dc7e2d2ff/FLAGb7579de26 [2021-11-17 01:10:21,578 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 01:10:21,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-11-17 01:10:21,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff0db994/88ef385c5e844b06818e279dc7e2d2ff/FLAGb7579de26 [2021-11-17 01:10:22,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff0db994/88ef385c5e844b06818e279dc7e2d2ff [2021-11-17 01:10:22,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 01:10:22,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 01:10:22,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 01:10:22,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 01:10:22,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 01:10:22,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:10:22" (1/1) ... [2021-11-17 01:10:22,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1102b706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:22, skipping insertion in model container [2021-11-17 01:10:22,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:10:22" (1/1) ... [2021-11-17 01:10:22,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 01:10:22,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 01:10:22,767 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2021-11-17 01:10:22,768 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2021-11-17 01:10:23,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2021-11-17 01:10:24,047 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:10:24,080 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 01:10:24,194 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2021-11-17 01:10:24,195 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2021-11-17 01:10:24,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2021-11-17 01:10:24,453 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:10:24,570 INFO L208 MainTranslator]: Completed translation [2021-11-17 01:10:24,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24 WrapperNode [2021-11-17 01:10:24,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 01:10:24,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 01:10:24,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 01:10:24,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 01:10:24,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:24,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:24,809 INFO L137 Inliner]: procedures = 350, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4662 [2021-11-17 01:10:24,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 01:10:24,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 01:10:24,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 01:10:24,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 01:10:24,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:24,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:24,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:24,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:24,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:25,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:25,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:25,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 01:10:25,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 01:10:25,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 01:10:25,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 01:10:25,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (1/1) ... [2021-11-17 01:10:25,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:10:25,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:10:25,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 01:10:25,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 01:10:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 01:10:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-11-17 01:10:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-11-17 01:10:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 01:10:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2021-11-17 01:10:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2021-11-17 01:10:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 01:10:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 01:10:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-17 01:10:25,128 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-17 01:10:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-17 01:10:25,128 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-17 01:10:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2021-11-17 01:10:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2021-11-17 01:10:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-17 01:10:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-17 01:10:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-11-17 01:10:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-11-17 01:10:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 01:10:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 01:10:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 01:10:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 01:10:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 01:10:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 01:10:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-17 01:10:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-17 01:10:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-17 01:10:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-17 01:10:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-11-17 01:10:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-11-17 01:10:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-11-17 01:10:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-11-17 01:10:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2021-11-17 01:10:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2021-11-17 01:10:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 01:10:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 01:10:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 01:10:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 01:10:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 01:10:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 01:10:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-11-17 01:10:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-11-17 01:10:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 01:10:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 01:10:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 01:10:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 01:10:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-11-17 01:10:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-11-17 01:10:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 01:10:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 01:10:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2021-11-17 01:10:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2021-11-17 01:10:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-11-17 01:10:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-11-17 01:10:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-11-17 01:10:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-11-17 01:10:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2021-11-17 01:10:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2021-11-17 01:10:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 01:10:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 01:10:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-11-17 01:10:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-11-17 01:10:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-17 01:10:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-17 01:10:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-11-17 01:10:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-11-17 01:10:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 01:10:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-11-17 01:10:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-11-17 01:10:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-11-17 01:10:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-11-17 01:10:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-11-17 01:10:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-11-17 01:10:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-17 01:10:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-17 01:10:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-11-17 01:10:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-11-17 01:10:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 01:10:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 01:10:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 01:10:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 01:10:25,141 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 01:10:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-17 01:10:25,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-17 01:10:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-17 01:10:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-11-17 01:10:25,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-11-17 01:10:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-11-17 01:10:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-11-17 01:10:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 01:10:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 01:10:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 01:10:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-17 01:10:25,143 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-17 01:10:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 01:10:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2021-11-17 01:10:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2021-11-17 01:10:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-11-17 01:10:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-11-17 01:10:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-17 01:10:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-17 01:10:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-11-17 01:10:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-11-17 01:10:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-11-17 01:10:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-11-17 01:10:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-11-17 01:10:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-11-17 01:10:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 01:10:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 01:10:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 01:10:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 01:10:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 01:10:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 01:10:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-17 01:10:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-17 01:10:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-11-17 01:10:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-11-17 01:10:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 01:10:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 01:10:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 01:10:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-17 01:10:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-17 01:10:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-11-17 01:10:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-11-17 01:10:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-17 01:10:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-17 01:10:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-17 01:10:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-17 01:10:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 01:10:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 01:10:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 01:10:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-11-17 01:10:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-11-17 01:10:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-11-17 01:10:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-11-17 01:10:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2021-11-17 01:10:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2021-11-17 01:10:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-11-17 01:10:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-11-17 01:10:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-17 01:10:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-17 01:10:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 01:10:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 01:10:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 01:10:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 01:10:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 01:10:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-17 01:10:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-17 01:10:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 01:10:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 01:10:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2021-11-17 01:10:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2021-11-17 01:10:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-11-17 01:10:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-11-17 01:10:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2021-11-17 01:10:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2021-11-17 01:10:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 01:10:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 01:10:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 01:10:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 01:10:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2021-11-17 01:10:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2021-11-17 01:10:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 01:10:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 01:10:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-17 01:10:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-17 01:10:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-11-17 01:10:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-11-17 01:10:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 01:10:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-17 01:10:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-17 01:10:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 01:10:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 01:10:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 01:10:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 01:10:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2021-11-17 01:10:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2021-11-17 01:10:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-17 01:10:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-17 01:10:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2021-11-17 01:10:25,165 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2021-11-17 01:10:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 01:10:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 01:10:25,165 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 01:10:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 01:10:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-17 01:10:25,165 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-17 01:10:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-17 01:10:25,165 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-17 01:10:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 01:10:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-11-17 01:10:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-11-17 01:10:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-17 01:10:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-17 01:10:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 01:10:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 01:10:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-17 01:10:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-17 01:10:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-17 01:10:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-17 01:10:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-17 01:10:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-17 01:10:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 01:10:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 01:10:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-17 01:10:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-17 01:10:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-11-17 01:10:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-11-17 01:10:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 01:10:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 01:10:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2021-11-17 01:10:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2021-11-17 01:10:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-17 01:10:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-17 01:10:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 01:10:25,169 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 01:10:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 01:10:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-17 01:10:25,169 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-17 01:10:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-17 01:10:25,169 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-17 01:10:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-11-17 01:10:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-11-17 01:10:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2021-11-17 01:10:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2021-11-17 01:10:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 01:10:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 01:10:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-11-17 01:10:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-11-17 01:10:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 01:10:25,171 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 01:10:25,171 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 01:10:25,171 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 01:10:25,888 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 01:10:25,891 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 01:10:26,565 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 01:10:31,780 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 01:10:31,802 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 01:10:31,802 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 01:10:31,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:10:31 BoogieIcfgContainer [2021-11-17 01:10:31,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 01:10:31,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 01:10:31,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 01:10:31,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 01:10:31,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 01:10:22" (1/3) ... [2021-11-17 01:10:31,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c44f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:10:31, skipping insertion in model container [2021-11-17 01:10:31,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:10:24" (2/3) ... [2021-11-17 01:10:31,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c44f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:10:31, skipping insertion in model container [2021-11-17 01:10:31,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:10:31" (3/3) ... [2021-11-17 01:10:31,817 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-11-17 01:10:31,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 01:10:31,821 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 01:10:31,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 01:10:31,867 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 01:10:31,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 01:10:31,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 1587 states, 1111 states have (on average 1.297029702970297) internal successors, (1441), 1141 states have internal predecessors, (1441), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2021-11-17 01:10:31,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-17 01:10:31,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:10:31,933 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:10:31,934 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:10:31,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:10:31,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1077420318, now seen corresponding path program 1 times [2021-11-17 01:10:31,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:10:31,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662369908] [2021-11-17 01:10:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:10:31,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:10:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:10:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:10:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:10:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:10:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:10:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:10:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:10:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:10:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:10:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:10:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:10:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:10:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:10:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 01:10:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:10:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:10:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 01:10:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:10:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 01:10:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:10:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 01:10:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:10:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 01:10:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 01:10:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-11-17 01:10:32,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:10:32,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662369908] [2021-11-17 01:10:32,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662369908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:10:32,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:10:32,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:10:32,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901355901] [2021-11-17 01:10:32,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:10:32,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:10:32,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:10:32,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:10:32,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:10:32,832 INFO L87 Difference]: Start difference. First operand has 1587 states, 1111 states have (on average 1.297029702970297) internal successors, (1441), 1141 states have internal predecessors, (1441), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 01:10:34,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:10:42,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:10:45,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:10:47,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:10:49,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:10:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:10:51,023 INFO L93 Difference]: Finished difference Result 4573 states and 6357 transitions. [2021-11-17 01:10:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 01:10:51,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2021-11-17 01:10:51,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:10:51,068 INFO L225 Difference]: With dead ends: 4573 [2021-11-17 01:10:51,068 INFO L226 Difference]: Without dead ends: 2943 [2021-11-17 01:10:51,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-17 01:10:51,091 INFO L933 BasicCegarLoop]: 2150 mSDtfsCounter, 3983 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 3609 mSolverCounterSat, 2801 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4209 SdHoareTripleChecker+Valid, 5632 SdHoareTripleChecker+Invalid, 6414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2801 IncrementalHoareTripleChecker+Valid, 3609 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-17 01:10:51,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4209 Valid, 5632 Invalid, 6414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2801 Valid, 3609 Invalid, 4 Unknown, 0 Unchecked, 17.6s Time] [2021-11-17 01:10:51,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-11-17 01:10:51,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 2569. [2021-11-17 01:10:51,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 1803 states have (on average 1.2784248474764282) internal successors, (2305), 1846 states have internal predecessors, (2305), 572 states have call successors, (572), 193 states have call predecessors, (572), 193 states have return successors, (576), 562 states have call predecessors, (576), 571 states have call successors, (576) [2021-11-17 01:10:51,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 3453 transitions. [2021-11-17 01:10:51,346 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 3453 transitions. Word has length 162 [2021-11-17 01:10:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:10:51,349 INFO L470 AbstractCegarLoop]: Abstraction has 2569 states and 3453 transitions. [2021-11-17 01:10:51,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 01:10:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 3453 transitions. [2021-11-17 01:10:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-17 01:10:51,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:10:51,364 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:10:51,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 01:10:51,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:10:51,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:10:51,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1609982772, now seen corresponding path program 1 times [2021-11-17 01:10:51,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:10:51,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27528529] [2021-11-17 01:10:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:10:51,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:10:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:10:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:10:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:10:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:10:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:10:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:10:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:10:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:10:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:10:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:10:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:10:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:10:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 01:10:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 01:10:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 01:10:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 01:10:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 01:10:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:10:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 01:10:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:10:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-17 01:10:51,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:10:51,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27528529] [2021-11-17 01:10:51,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27528529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:10:51,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:10:51,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:10:51,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378541190] [2021-11-17 01:10:51,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:10:51,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:10:51,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:10:51,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:10:51,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:10:51,768 INFO L87 Difference]: Start difference. First operand 2569 states and 3453 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 01:10:59,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:01,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:03,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:06,071 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:08,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:10,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:12,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:14,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:16,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:19,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:20,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:11:20,201 INFO L93 Difference]: Finished difference Result 6794 states and 9260 transitions. [2021-11-17 01:11:20,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:11:20,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2021-11-17 01:11:20,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:11:20,227 INFO L225 Difference]: With dead ends: 6794 [2021-11-17 01:11:20,227 INFO L226 Difference]: Without dead ends: 4252 [2021-11-17 01:11:20,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 01:11:20,239 INFO L933 BasicCegarLoop]: 2927 mSDtfsCounter, 2425 mSDsluCounter, 5031 mSDsCounter, 0 mSdLazyCounter, 3587 mSolverCounterSat, 1445 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 7958 SdHoareTripleChecker+Invalid, 5041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1445 IncrementalHoareTripleChecker+Valid, 3587 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:11:20,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2666 Valid, 7958 Invalid, 5041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1445 Valid, 3587 Invalid, 9 Unknown, 0 Unchecked, 28.0s Time] [2021-11-17 01:11:20,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2021-11-17 01:11:20,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 3705. [2021-11-17 01:11:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3705 states, 2615 states have (on average 1.2822179732313574) internal successors, (3353), 2674 states have internal predecessors, (3353), 814 states have call successors, (814), 273 states have call predecessors, (814), 275 states have return successors, (833), 804 states have call predecessors, (833), 813 states have call successors, (833) [2021-11-17 01:11:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3705 states to 3705 states and 5000 transitions. [2021-11-17 01:11:20,391 INFO L78 Accepts]: Start accepts. Automaton has 3705 states and 5000 transitions. Word has length 155 [2021-11-17 01:11:20,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:11:20,392 INFO L470 AbstractCegarLoop]: Abstraction has 3705 states and 5000 transitions. [2021-11-17 01:11:20,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 01:11:20,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3705 states and 5000 transitions. [2021-11-17 01:11:20,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-17 01:11:20,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:11:20,397 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:11:20,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 01:11:20,398 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:11:20,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:11:20,398 INFO L85 PathProgramCache]: Analyzing trace with hash 356772008, now seen corresponding path program 1 times [2021-11-17 01:11:20,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:11:20,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037996586] [2021-11-17 01:11:20,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:11:20,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:11:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:11:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:11:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:11:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:11:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:11:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:11:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:11:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:11:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:11:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:11:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:11:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:11:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 01:11:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:11:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:11:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 01:11:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 01:11:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 01:11:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 01:11:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:11:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 01:11:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-17 01:11:20,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:11:20,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037996586] [2021-11-17 01:11:20,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037996586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:11:20,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:11:20,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 01:11:20,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057324187] [2021-11-17 01:11:20,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:11:20,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:11:20,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:11:20,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:11:20,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:11:20,806 INFO L87 Difference]: Start difference. First operand 3705 states and 5000 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 01:11:23,759 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:28,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:31,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:33,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:34,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:11:34,087 INFO L93 Difference]: Finished difference Result 7910 states and 10785 transitions. [2021-11-17 01:11:34,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:11:34,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 180 [2021-11-17 01:11:34,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:11:34,109 INFO L225 Difference]: With dead ends: 7910 [2021-11-17 01:11:34,110 INFO L226 Difference]: Without dead ends: 4249 [2021-11-17 01:11:34,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-17 01:11:34,124 INFO L933 BasicCegarLoop]: 1981 mSDtfsCounter, 1445 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 2645 mSolverCounterSat, 1399 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 6923 SdHoareTripleChecker+Invalid, 4048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1399 IncrementalHoareTripleChecker+Valid, 2645 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:11:34,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 6923 Invalid, 4048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1399 Valid, 2645 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2021-11-17 01:11:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4249 states. [2021-11-17 01:11:34,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4249 to 3705. [2021-11-17 01:11:34,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3705 states, 2615 states have (on average 1.2791586998087954) internal successors, (3345), 2674 states have internal predecessors, (3345), 814 states have call successors, (814), 273 states have call predecessors, (814), 275 states have return successors, (833), 804 states have call predecessors, (833), 813 states have call successors, (833) [2021-11-17 01:11:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3705 states to 3705 states and 4992 transitions. [2021-11-17 01:11:34,297 INFO L78 Accepts]: Start accepts. Automaton has 3705 states and 4992 transitions. Word has length 180 [2021-11-17 01:11:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:11:34,297 INFO L470 AbstractCegarLoop]: Abstraction has 3705 states and 4992 transitions. [2021-11-17 01:11:34,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 01:11:34,298 INFO L276 IsEmpty]: Start isEmpty. Operand 3705 states and 4992 transitions. [2021-11-17 01:11:34,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-17 01:11:34,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:11:34,303 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:11:34,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 01:11:34,304 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:11:34,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:11:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash -562291296, now seen corresponding path program 1 times [2021-11-17 01:11:34,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:11:34,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801692991] [2021-11-17 01:11:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:11:34,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:11:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:11:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:11:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:11:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:11:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:11:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:11:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:11:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:11:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:11:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:11:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:11:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:11:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:11:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 01:11:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:11:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 01:11:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 01:11:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 01:11:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 01:11:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:11:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 01:11:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-17 01:11:34,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:11:34,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801692991] [2021-11-17 01:11:34,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801692991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:11:34,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:11:34,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:11:34,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477843357] [2021-11-17 01:11:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:11:34,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:11:34,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:11:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:11:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:11:34,636 INFO L87 Difference]: Start difference. First operand 3705 states and 4992 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-17 01:11:41,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:44,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:46,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:48,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:11:48,040 INFO L93 Difference]: Finished difference Result 10594 states and 14444 transitions. [2021-11-17 01:11:48,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:11:48,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 189 [2021-11-17 01:11:48,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:11:48,071 INFO L225 Difference]: With dead ends: 10594 [2021-11-17 01:11:48,071 INFO L226 Difference]: Without dead ends: 6941 [2021-11-17 01:11:48,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 01:11:48,084 INFO L933 BasicCegarLoop]: 2573 mSDtfsCounter, 4134 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 2739 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4472 SdHoareTripleChecker+Valid, 6182 SdHoareTripleChecker+Invalid, 5674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2739 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:11:48,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4472 Valid, 6182 Invalid, 5674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2739 Valid, 2932 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2021-11-17 01:11:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6941 states. [2021-11-17 01:11:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6941 to 5942. [2021-11-17 01:11:48,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 4198 states have (on average 1.2779895188184849) internal successors, (5365), 4289 states have internal predecessors, (5365), 1292 states have call successors, (1292), 449 states have call predecessors, (1292), 451 states have return successors, (1312), 1281 states have call predecessors, (1312), 1291 states have call successors, (1312) [2021-11-17 01:11:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 7969 transitions. [2021-11-17 01:11:48,330 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 7969 transitions. Word has length 189 [2021-11-17 01:11:48,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:11:48,332 INFO L470 AbstractCegarLoop]: Abstraction has 5942 states and 7969 transitions. [2021-11-17 01:11:48,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-17 01:11:48,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 7969 transitions. [2021-11-17 01:11:48,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-17 01:11:48,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:11:48,339 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:11:48,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 01:11:48,340 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:11:48,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:11:48,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1421263068, now seen corresponding path program 1 times [2021-11-17 01:11:48,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:11:48,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644600575] [2021-11-17 01:11:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:11:48,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:11:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:11:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:11:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:11:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:11:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:11:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:11:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:11:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:11:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:11:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:11:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:11:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:11:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:11:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 01:11:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 01:11:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 01:11:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 01:11:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 01:11:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 01:11:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:11:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 01:11:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:11:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-11-17 01:11:48,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:11:48,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644600575] [2021-11-17 01:11:48,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644600575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:11:48,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:11:48,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:11:48,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643160382] [2021-11-17 01:11:48,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:11:48,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:11:48,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:11:48,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:11:48,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:11:48,721 INFO L87 Difference]: Start difference. First operand 5942 states and 7969 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 01:11:55,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:11:57,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:00,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:12:00,161 INFO L93 Difference]: Finished difference Result 12090 states and 16550 transitions. [2021-11-17 01:12:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:12:00,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 187 [2021-11-17 01:12:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:12:00,225 INFO L225 Difference]: With dead ends: 12090 [2021-11-17 01:12:00,226 INFO L226 Difference]: Without dead ends: 12087 [2021-11-17 01:12:00,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 01:12:00,235 INFO L933 BasicCegarLoop]: 2325 mSDtfsCounter, 3114 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 1886 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3350 SdHoareTripleChecker+Valid, 6502 SdHoareTripleChecker+Invalid, 5230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1886 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:12:00,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3350 Valid, 6502 Invalid, 5230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1886 Valid, 3342 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2021-11-17 01:12:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12087 states. [2021-11-17 01:12:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12087 to 10641. [2021-11-17 01:12:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10641 states, 7613 states have (on average 1.2874031262314463) internal successors, (9801), 7793 states have internal predecessors, (9801), 2202 states have call successors, (2202), 804 states have call predecessors, (2202), 825 states have return successors, (2334), 2177 states have call predecessors, (2334), 2201 states have call successors, (2334) [2021-11-17 01:12:00,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10641 states to 10641 states and 14337 transitions. [2021-11-17 01:12:00,729 INFO L78 Accepts]: Start accepts. Automaton has 10641 states and 14337 transitions. Word has length 187 [2021-11-17 01:12:00,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:12:00,730 INFO L470 AbstractCegarLoop]: Abstraction has 10641 states and 14337 transitions. [2021-11-17 01:12:00,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 01:12:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 10641 states and 14337 transitions. [2021-11-17 01:12:00,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-17 01:12:00,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:12:00,746 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:12:00,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 01:12:00,747 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:12:00,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:12:00,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1367939842, now seen corresponding path program 1 times [2021-11-17 01:12:00,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:12:00,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103947867] [2021-11-17 01:12:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:12:00,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:12:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:12:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:12:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:12:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:12:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:12:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:12:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:12:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:12:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:12:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:12:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:12:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:12:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:12:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 01:12:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 01:12:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 01:12:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 01:12:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:12:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 01:12:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 01:12:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:12:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 01:12:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 01:12:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 01:12:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 01:12:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:12:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 01:12:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 01:12:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 01:12:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:01,129 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-17 01:12:01,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:12:01,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103947867] [2021-11-17 01:12:01,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103947867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:12:01,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:12:01,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 01:12:01,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694118725] [2021-11-17 01:12:01,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:12:01,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 01:12:01,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:12:01,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 01:12:01,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:12:01,132 INFO L87 Difference]: Start difference. First operand 10641 states and 14337 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 01:12:02,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:10,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:13,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:15,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:17,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:20,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:22,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:24,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:26,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:28,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:30,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:12:30,246 INFO L93 Difference]: Finished difference Result 30852 states and 42685 transitions. [2021-11-17 01:12:30,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 01:12:30,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 254 [2021-11-17 01:12:30,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:12:30,338 INFO L225 Difference]: With dead ends: 30852 [2021-11-17 01:12:30,338 INFO L226 Difference]: Without dead ends: 20263 [2021-11-17 01:12:30,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2021-11-17 01:12:30,378 INFO L933 BasicCegarLoop]: 2208 mSDtfsCounter, 7167 mSDsluCounter, 5716 mSDsCounter, 0 mSdLazyCounter, 5601 mSolverCounterSat, 5071 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7515 SdHoareTripleChecker+Valid, 7924 SdHoareTripleChecker+Invalid, 10681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5071 IncrementalHoareTripleChecker+Valid, 5601 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2021-11-17 01:12:30,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7515 Valid, 7924 Invalid, 10681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5071 Valid, 5601 Invalid, 9 Unknown, 0 Unchecked, 28.3s Time] [2021-11-17 01:12:30,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20263 states. [2021-11-17 01:12:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20263 to 10789. [2021-11-17 01:12:30,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10789 states, 7722 states have (on average 1.2852887852887853) internal successors, (9925), 7902 states have internal predecessors, (9925), 2226 states have call successors, (2226), 814 states have call predecessors, (2226), 840 states have return successors, (2356), 2205 states have call predecessors, (2356), 2225 states have call successors, (2356) [2021-11-17 01:12:31,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10789 states to 10789 states and 14507 transitions. [2021-11-17 01:12:31,101 INFO L78 Accepts]: Start accepts. Automaton has 10789 states and 14507 transitions. Word has length 254 [2021-11-17 01:12:31,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:12:31,109 INFO L470 AbstractCegarLoop]: Abstraction has 10789 states and 14507 transitions. [2021-11-17 01:12:31,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 01:12:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 10789 states and 14507 transitions. [2021-11-17 01:12:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-17 01:12:31,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:12:31,124 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:12:31,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 01:12:31,124 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:12:31,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:12:31,124 INFO L85 PathProgramCache]: Analyzing trace with hash -373246144, now seen corresponding path program 1 times [2021-11-17 01:12:31,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:12:31,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779579043] [2021-11-17 01:12:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:12:31,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:12:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:12:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:12:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:12:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:12:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:12:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:12:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:12:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:12:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:12:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:12:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:12:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:12:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:12:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 01:12:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 01:12:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 01:12:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 01:12:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:12:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 01:12:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 01:12:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:12:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 01:12:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 01:12:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 01:12:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 01:12:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:12:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 01:12:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 01:12:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 01:12:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-11-17 01:12:31,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:12:31,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779579043] [2021-11-17 01:12:31,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779579043] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:12:31,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49724497] [2021-11-17 01:12:31,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:12:31,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:12:31,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:12:31,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:12:31,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 01:12:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:32,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 2827 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:12:32,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:12:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-17 01:12:32,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:12:32,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49724497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:12:32,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:12:32,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-17 01:12:32,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849965774] [2021-11-17 01:12:32,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:12:32,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:12:32,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:12:32,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:12:32,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 01:12:32,865 INFO L87 Difference]: Start difference. First operand 10789 states and 14507 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 01:12:33,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:12:33,439 INFO L93 Difference]: Finished difference Result 26372 states and 35467 transitions. [2021-11-17 01:12:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:12:33,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 254 [2021-11-17 01:12:33,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:12:33,523 INFO L225 Difference]: With dead ends: 26372 [2021-11-17 01:12:33,523 INFO L226 Difference]: Without dead ends: 15635 [2021-11-17 01:12:33,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 01:12:33,678 INFO L933 BasicCegarLoop]: 2398 mSDtfsCounter, 1559 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:12:33,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 4312 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:12:33,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15635 states. [2021-11-17 01:12:34,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15635 to 15583. [2021-11-17 01:12:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15583 states, 11278 states have (on average 1.288615002660046) internal successors, (14533), 11534 states have internal predecessors, (14533), 3066 states have call successors, (3066), 1198 states have call predecessors, (3066), 1238 states have return successors, (3250), 3033 states have call predecessors, (3250), 3065 states have call successors, (3250) [2021-11-17 01:12:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15583 states to 15583 states and 20849 transitions. [2021-11-17 01:12:34,489 INFO L78 Accepts]: Start accepts. Automaton has 15583 states and 20849 transitions. Word has length 254 [2021-11-17 01:12:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:12:34,490 INFO L470 AbstractCegarLoop]: Abstraction has 15583 states and 20849 transitions. [2021-11-17 01:12:34,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 01:12:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 15583 states and 20849 transitions. [2021-11-17 01:12:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-17 01:12:34,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:12:34,516 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:12:34,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 01:12:34,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:12:34,732 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:12:34,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:12:34,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1703097001, now seen corresponding path program 1 times [2021-11-17 01:12:34,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:12:34,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025845791] [2021-11-17 01:12:34,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:12:34,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:12:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:34,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:12:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:34,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:12:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:34,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:12:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:12:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:12:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:12:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:12:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:12:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:12:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:12:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:12:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:12:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:12:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 01:12:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 01:12:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 01:12:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 01:12:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:12:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 01:12:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 01:12:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 01:12:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 01:12:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 01:12:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 01:12:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 01:12:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 01:12:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 01:12:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 01:12:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 01:12:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2021-11-17 01:12:35,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:12:35,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025845791] [2021-11-17 01:12:35,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025845791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:12:35,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:12:35,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 01:12:35,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140757617] [2021-11-17 01:12:35,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:12:35,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:12:35,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:12:35,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:12:35,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:12:35,282 INFO L87 Difference]: Start difference. First operand 15583 states and 20849 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 01:12:36,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:38,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:39,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:45,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:47,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:50,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:52,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:54,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:56,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:12:57,505 INFO L93 Difference]: Finished difference Result 33493 states and 45330 transitions. [2021-11-17 01:12:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:12:57,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 273 [2021-11-17 01:12:57,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:12:57,593 INFO L225 Difference]: With dead ends: 33493 [2021-11-17 01:12:57,593 INFO L226 Difference]: Without dead ends: 17962 [2021-11-17 01:12:57,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:12:57,639 INFO L933 BasicCegarLoop]: 1883 mSDtfsCounter, 2346 mSDsluCounter, 3515 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 2075 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 5398 SdHoareTripleChecker+Invalid, 4967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2075 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2021-11-17 01:12:57,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2478 Valid, 5398 Invalid, 4967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2075 Valid, 2886 Invalid, 6 Unknown, 0 Unchecked, 21.5s Time] [2021-11-17 01:12:57,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17962 states. [2021-11-17 01:12:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17962 to 15585. [2021-11-17 01:12:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15585 states, 11280 states have (on average 1.288563829787234) internal successors, (14535), 11536 states have internal predecessors, (14535), 3066 states have call successors, (3066), 1198 states have call predecessors, (3066), 1238 states have return successors, (3250), 3033 states have call predecessors, (3250), 3065 states have call successors, (3250) [2021-11-17 01:12:58,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15585 states to 15585 states and 20851 transitions. [2021-11-17 01:12:58,460 INFO L78 Accepts]: Start accepts. Automaton has 15585 states and 20851 transitions. Word has length 273 [2021-11-17 01:12:58,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:12:58,461 INFO L470 AbstractCegarLoop]: Abstraction has 15585 states and 20851 transitions. [2021-11-17 01:12:58,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 01:12:58,461 INFO L276 IsEmpty]: Start isEmpty. Operand 15585 states and 20851 transitions. [2021-11-17 01:12:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-17 01:12:58,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:12:58,484 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:12:58,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 01:12:58,485 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:12:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:12:58,485 INFO L85 PathProgramCache]: Analyzing trace with hash -638950833, now seen corresponding path program 1 times [2021-11-17 01:12:58,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:12:58,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564912181] [2021-11-17 01:12:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:12:58,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:12:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:12:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:12:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:12:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:12:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:12:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:12:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:12:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:12:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:12:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:12:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:12:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:12:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:12:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 01:12:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 01:12:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 01:12:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 01:12:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:12:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 01:12:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 01:12:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 01:12:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 01:12:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 01:12:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 01:12:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 01:12:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 01:12:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 01:12:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:12:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 01:12:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 01:12:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2021-11-17 01:12:58,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:12:58,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564912181] [2021-11-17 01:12:58,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564912181] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:12:58,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106569754] [2021-11-17 01:12:58,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:12:58,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:12:58,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:12:58,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:12:58,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 01:12:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:59,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 2905 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 01:12:59,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:13:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-17 01:13:00,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:13:00,942 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2021-11-17 01:13:00,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106569754] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:13:00,942 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 01:13:00,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-11-17 01:13:00,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867148596] [2021-11-17 01:13:00,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 01:13:00,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 01:13:00,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:13:00,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 01:13:00,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:13:00,944 INFO L87 Difference]: Start difference. First operand 15585 states and 20851 transitions. Second operand has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-17 01:13:02,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:10,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:13,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:13:15,747 INFO L93 Difference]: Finished difference Result 37036 states and 50922 transitions. [2021-11-17 01:13:15,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 01:13:15,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 277 [2021-11-17 01:13:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:13:15,839 INFO L225 Difference]: With dead ends: 37036 [2021-11-17 01:13:15,840 INFO L226 Difference]: Without dead ends: 21503 [2021-11-17 01:13:15,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-11-17 01:13:15,890 INFO L933 BasicCegarLoop]: 2367 mSDtfsCounter, 2840 mSDsluCounter, 7785 mSDsCounter, 0 mSdLazyCounter, 5342 mSolverCounterSat, 2431 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3143 SdHoareTripleChecker+Valid, 10152 SdHoareTripleChecker+Invalid, 7775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2431 IncrementalHoareTripleChecker+Valid, 5342 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-11-17 01:13:15,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3143 Valid, 10152 Invalid, 7775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2431 Valid, 5342 Invalid, 2 Unknown, 0 Unchecked, 13.9s Time] [2021-11-17 01:13:15,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21503 states. [2021-11-17 01:13:16,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21503 to 15605. [2021-11-17 01:13:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15605 states, 11300 states have (on average 1.2884070796460176) internal successors, (14559), 11556 states have internal predecessors, (14559), 3066 states have call successors, (3066), 1198 states have call predecessors, (3066), 1238 states have return successors, (3250), 3033 states have call predecessors, (3250), 3065 states have call successors, (3250) [2021-11-17 01:13:16,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15605 states to 15605 states and 20875 transitions. [2021-11-17 01:13:16,821 INFO L78 Accepts]: Start accepts. Automaton has 15605 states and 20875 transitions. Word has length 277 [2021-11-17 01:13:16,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:13:16,824 INFO L470 AbstractCegarLoop]: Abstraction has 15605 states and 20875 transitions. [2021-11-17 01:13:16,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-17 01:13:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15605 states and 20875 transitions. [2021-11-17 01:13:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-17 01:13:16,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:13:16,847 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:13:16,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 01:13:17,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-17 01:13:17,060 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:13:17,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:13:17,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1633451894, now seen corresponding path program 1 times [2021-11-17 01:13:17,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:13:17,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046070879] [2021-11-17 01:13:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:13:17,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:13:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:13:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:13:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:13:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:13:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:13:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:13:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:13:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:13:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:13:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:13:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:13:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:13:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:13:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 01:13:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 01:13:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 01:13:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 01:13:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:13:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 01:13:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 01:13:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 01:13:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 01:13:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 01:13:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 01:13:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 01:13:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 01:13:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 01:13:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 01:13:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 01:13:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-17 01:13:17,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:13:17,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046070879] [2021-11-17 01:13:17,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046070879] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:13:17,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860190477] [2021-11-17 01:13:17,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:13:17,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:13:17,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:13:17,832 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:13:17,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 01:13:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:18,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 01:13:18,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:13:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-17 01:13:19,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:13:19,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860190477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:13:19,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:13:19,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2021-11-17 01:13:19,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197687035] [2021-11-17 01:13:19,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:13:19,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 01:13:19,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:13:19,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 01:13:19,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2021-11-17 01:13:19,087 INFO L87 Difference]: Start difference. First operand 15605 states and 20875 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 01:13:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:13:19,881 INFO L93 Difference]: Finished difference Result 32824 states and 44223 transitions. [2021-11-17 01:13:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 01:13:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 278 [2021-11-17 01:13:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:13:19,934 INFO L225 Difference]: With dead ends: 32824 [2021-11-17 01:13:19,934 INFO L226 Difference]: Without dead ends: 17271 [2021-11-17 01:13:19,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2021-11-17 01:13:19,975 INFO L933 BasicCegarLoop]: 2531 mSDtfsCounter, 802 mSDsluCounter, 6968 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 9499 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:13:19,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [821 Valid, 9499 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:13:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17271 states. [2021-11-17 01:13:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17271 to 15609. [2021-11-17 01:13:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15609 states, 11304 states have (on average 1.288305024769993) internal successors, (14563), 11560 states have internal predecessors, (14563), 3066 states have call successors, (3066), 1198 states have call predecessors, (3066), 1238 states have return successors, (3250), 3033 states have call predecessors, (3250), 3065 states have call successors, (3250) [2021-11-17 01:13:20,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15609 states to 15609 states and 20879 transitions. [2021-11-17 01:13:20,687 INFO L78 Accepts]: Start accepts. Automaton has 15609 states and 20879 transitions. Word has length 278 [2021-11-17 01:13:20,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:13:20,687 INFO L470 AbstractCegarLoop]: Abstraction has 15609 states and 20879 transitions. [2021-11-17 01:13:20,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 01:13:20,688 INFO L276 IsEmpty]: Start isEmpty. Operand 15609 states and 20879 transitions. [2021-11-17 01:13:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-11-17 01:13:20,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:13:20,712 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:13:20,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 01:13:20,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:13:20,940 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:13:20,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:13:20,941 INFO L85 PathProgramCache]: Analyzing trace with hash 879589531, now seen corresponding path program 2 times [2021-11-17 01:13:20,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:13:20,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915897251] [2021-11-17 01:13:20,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:13:20,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:13:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:13:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:13:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:13:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:13:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:13:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:13:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:13:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:13:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:13:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:13:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 01:13:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 01:13:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 01:13:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 01:13:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 01:13:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 01:13:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 01:13:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:13:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 01:13:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 01:13:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 01:13:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 01:13:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 01:13:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 01:13:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 01:13:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 01:13:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 01:13:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 01:13:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 01:13:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-17 01:13:21,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:13:21,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915897251] [2021-11-17 01:13:21,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915897251] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:13:21,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851447717] [2021-11-17 01:13:21,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 01:13:21,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:13:21,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:13:21,751 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:13:21,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 01:13:22,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-17 01:13:22,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 01:13:22,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 2959 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 01:13:22,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:13:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-11-17 01:13:23,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:13:23,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851447717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:13:23,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:13:23,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2021-11-17 01:13:23,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114174300] [2021-11-17 01:13:23,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:13:23,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 01:13:23,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:13:23,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 01:13:23,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-11-17 01:13:23,100 INFO L87 Difference]: Start difference. First operand 15609 states and 20879 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 01:13:23,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:13:23,698 INFO L93 Difference]: Finished difference Result 31214 states and 41824 transitions. [2021-11-17 01:13:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 01:13:23,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 285 [2021-11-17 01:13:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:13:23,772 INFO L225 Difference]: With dead ends: 31214 [2021-11-17 01:13:23,773 INFO L226 Difference]: Without dead ends: 15622 [2021-11-17 01:13:23,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2021-11-17 01:13:23,811 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 2 mSDsluCounter, 4230 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6348 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:13:23,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6348 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:13:23,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2021-11-17 01:13:24,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 15622. [2021-11-17 01:13:24,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15622 states, 11317 states have (on average 1.2879738446584783) internal successors, (14576), 11573 states have internal predecessors, (14576), 3066 states have call successors, (3066), 1198 states have call predecessors, (3066), 1238 states have return successors, (3250), 3033 states have call predecessors, (3250), 3065 states have call successors, (3250) [2021-11-17 01:13:24,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15622 states to 15622 states and 20892 transitions. [2021-11-17 01:13:24,471 INFO L78 Accepts]: Start accepts. Automaton has 15622 states and 20892 transitions. Word has length 285 [2021-11-17 01:13:24,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:13:24,472 INFO L470 AbstractCegarLoop]: Abstraction has 15622 states and 20892 transitions. [2021-11-17 01:13:24,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 01:13:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 15622 states and 20892 transitions. [2021-11-17 01:13:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-17 01:13:24,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:13:24,488 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:13:24,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 01:13:24,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:13:24,704 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:13:24,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:13:24,704 INFO L85 PathProgramCache]: Analyzing trace with hash 436604199, now seen corresponding path program 1 times [2021-11-17 01:13:24,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:13:24,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674143782] [2021-11-17 01:13:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:13:24,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:13:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:13:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:13:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:13:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:13:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:13:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:13:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:13:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:13:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:13:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:13:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 01:13:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 01:13:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 01:13:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:13:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 01:13:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:13:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:13:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 01:13:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 01:13:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 01:13:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:13:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 01:13:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 01:13:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:13:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 01:13:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 01:13:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 01:13:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:13:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 01:13:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 01:13:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-11-17 01:13:25,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:13:25,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674143782] [2021-11-17 01:13:25,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674143782] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:13:25,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456490797] [2021-11-17 01:13:25,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:13:25,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:13:25,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:13:25,386 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:13:25,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-17 01:13:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:26,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 2977 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 01:13:26,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:13:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 122 proven. 1 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2021-11-17 01:13:26,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:13:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-11-17 01:13:27,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456490797] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:13:27,461 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 01:13:27,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 22 [2021-11-17 01:13:27,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920800459] [2021-11-17 01:13:27,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 01:13:27,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-17 01:13:27,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:13:27,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-17 01:13:27,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-11-17 01:13:27,463 INFO L87 Difference]: Start difference. First operand 15622 states and 20892 transitions. Second operand has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-17 01:13:29,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:41,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:43,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:46,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:48,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:52,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:54,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:56,894 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:58,984 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:01,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:03,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:14:03,560 INFO L93 Difference]: Finished difference Result 36971 states and 50949 transitions. [2021-11-17 01:14:03,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-17 01:14:03,560 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) Word has length 288 [2021-11-17 01:14:03,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:14:03,626 INFO L225 Difference]: With dead ends: 36971 [2021-11-17 01:14:03,626 INFO L226 Difference]: Without dead ends: 21366 [2021-11-17 01:14:03,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=260, Invalid=1546, Unknown=0, NotChecked=0, Total=1806 [2021-11-17 01:14:03,666 INFO L933 BasicCegarLoop]: 2548 mSDtfsCounter, 3352 mSDsluCounter, 27415 mSDsCounter, 0 mSdLazyCounter, 13730 mSolverCounterSat, 2131 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3481 SdHoareTripleChecker+Valid, 29963 SdHoareTripleChecker+Invalid, 15870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2131 IncrementalHoareTripleChecker+Valid, 13730 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2021-11-17 01:14:03,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3481 Valid, 29963 Invalid, 15870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2131 Valid, 13730 Invalid, 9 Unknown, 0 Unchecked, 34.4s Time] [2021-11-17 01:14:03,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21366 states. [2021-11-17 01:14:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21366 to 15667. [2021-11-17 01:14:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15667 states, 11355 states have (on average 1.2872743284896522) internal successors, (14617), 11611 states have internal predecessors, (14617), 3072 states have call successors, (3072), 1199 states have call predecessors, (3072), 1239 states have return successors, (3256), 3039 states have call predecessors, (3256), 3071 states have call successors, (3256) [2021-11-17 01:14:04,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15667 states to 15667 states and 20945 transitions. [2021-11-17 01:14:04,410 INFO L78 Accepts]: Start accepts. Automaton has 15667 states and 20945 transitions. Word has length 288 [2021-11-17 01:14:04,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:14:04,410 INFO L470 AbstractCegarLoop]: Abstraction has 15667 states and 20945 transitions. [2021-11-17 01:14:04,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-17 01:14:04,411 INFO L276 IsEmpty]: Start isEmpty. Operand 15667 states and 20945 transitions. [2021-11-17 01:14:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-11-17 01:14:04,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:14:04,428 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:14:04,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-17 01:14:04,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-17 01:14:04,648 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:14:04,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:14:04,648 INFO L85 PathProgramCache]: Analyzing trace with hash -385833224, now seen corresponding path program 1 times [2021-11-17 01:14:04,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:14:04,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277600391] [2021-11-17 01:14:04,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:14:04,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:14:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:14:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:14:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:14:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:14:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:14:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:14:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:14:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:14:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:14:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:14:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:14:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:14:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:14:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 01:14:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 01:14:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 01:14:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 01:14:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 01:14:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 01:14:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 01:14:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 01:14:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:14:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 01:14:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 01:14:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 01:14:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 01:14:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 01:14:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 01:14:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 01:14:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 01:14:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 01:14:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 01:14:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-17 01:14:05,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:14:05,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277600391] [2021-11-17 01:14:05,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277600391] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:14:05,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022136938] [2021-11-17 01:14:05,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:14:05,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:14:05,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:14:05,276 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:14:05,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-17 01:14:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:05,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 3148 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-17 01:14:05,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:14:06,589 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 127 proven. 50 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-17 01:14:06,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:14:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2021-11-17 01:14:07,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022136938] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:14:07,270 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 01:14:07,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 6] total 20 [2021-11-17 01:14:07,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404090865] [2021-11-17 01:14:07,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 01:14:07,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-17 01:14:07,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:14:07,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-17 01:14:07,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-11-17 01:14:07,272 INFO L87 Difference]: Start difference. First operand 15667 states and 20945 transitions. Second operand has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) [2021-11-17 01:14:08,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:17,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:20,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:22,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:24,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:26,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:28,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:30,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:34,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:36,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:39,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:14:39,124 INFO L93 Difference]: Finished difference Result 37062 states and 51010 transitions. [2021-11-17 01:14:39,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 01:14:39,125 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) Word has length 316 [2021-11-17 01:14:39,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:14:39,185 INFO L225 Difference]: With dead ends: 37062 [2021-11-17 01:14:39,185 INFO L226 Difference]: Without dead ends: 21425 [2021-11-17 01:14:39,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2021-11-17 01:14:39,219 INFO L933 BasicCegarLoop]: 2597 mSDtfsCounter, 3304 mSDsluCounter, 23243 mSDsCounter, 0 mSdLazyCounter, 10937 mSolverCounterSat, 2466 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3437 SdHoareTripleChecker+Valid, 25840 SdHoareTripleChecker+Invalid, 13412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2466 IncrementalHoareTripleChecker+Valid, 10937 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-11-17 01:14:39,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3437 Valid, 25840 Invalid, 13412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2466 Valid, 10937 Invalid, 9 Unknown, 0 Unchecked, 30.5s Time] [2021-11-17 01:14:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21425 states. [2021-11-17 01:14:40,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21425 to 15705. [2021-11-17 01:14:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15705 states, 11390 states have (on average 1.2861281826163302) internal successors, (14649), 11643 states have internal predecessors, (14649), 3072 states have call successors, (3072), 1199 states have call predecessors, (3072), 1242 states have return successors, (3280), 3045 states have call predecessors, (3280), 3071 states have call successors, (3280) [2021-11-17 01:14:40,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15705 states to 15705 states and 21001 transitions. [2021-11-17 01:14:40,075 INFO L78 Accepts]: Start accepts. Automaton has 15705 states and 21001 transitions. Word has length 316 [2021-11-17 01:14:40,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:14:40,075 INFO L470 AbstractCegarLoop]: Abstraction has 15705 states and 21001 transitions. [2021-11-17 01:14:40,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) [2021-11-17 01:14:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 15705 states and 21001 transitions. [2021-11-17 01:14:40,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-17 01:14:40,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:14:40,086 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:14:40,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-17 01:14:40,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:14:40,299 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:14:40,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:14:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash 262916401, now seen corresponding path program 1 times [2021-11-17 01:14:40,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:14:40,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595625389] [2021-11-17 01:14:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:14:40,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:14:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:14:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:14:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:14:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:14:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:14:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:14:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:14:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:14:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:14:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:14:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:14:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:14:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 01:14:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:14:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 01:14:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 01:14:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 01:14:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 01:14:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:14:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 01:14:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 01:14:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 01:14:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 01:14:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 01:14:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:14:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 01:14:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 01:14:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 01:14:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 01:14:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 01:14:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 01:14:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:14:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:14:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 01:14:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 01:14:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-17 01:14:40,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:14:40,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595625389] [2021-11-17 01:14:40,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595625389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:14:40,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:14:40,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 01:14:40,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323055342] [2021-11-17 01:14:40,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:14:40,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:14:40,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:14:40,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:14:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:14:40,659 INFO L87 Difference]: Start difference. First operand 15705 states and 21001 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:14:41,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:47,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:50,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:52,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:54,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:56,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:58,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:00,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:01,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:15:01,681 INFO L93 Difference]: Finished difference Result 33826 states and 45792 transitions. [2021-11-17 01:15:01,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 01:15:01,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 321 [2021-11-17 01:15:01,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:15:01,729 INFO L225 Difference]: With dead ends: 33826 [2021-11-17 01:15:01,730 INFO L226 Difference]: Without dead ends: 18185 [2021-11-17 01:15:01,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:15:01,761 INFO L933 BasicCegarLoop]: 1882 mSDtfsCounter, 2608 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 2244 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 5120 SdHoareTripleChecker+Invalid, 5097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2244 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-17 01:15:01,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2687 Valid, 5120 Invalid, 5097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2244 Valid, 2848 Invalid, 5 Unknown, 0 Unchecked, 20.3s Time] [2021-11-17 01:15:01,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18185 states. [2021-11-17 01:15:02,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18185 to 15825. [2021-11-17 01:15:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15825 states, 11510 states have (on average 1.2831450912250217) internal successors, (14769), 11763 states have internal predecessors, (14769), 3072 states have call successors, (3072), 1199 states have call predecessors, (3072), 1242 states have return successors, (3280), 3045 states have call predecessors, (3280), 3071 states have call successors, (3280) [2021-11-17 01:15:02,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15825 states to 15825 states and 21121 transitions. [2021-11-17 01:15:02,465 INFO L78 Accepts]: Start accepts. Automaton has 15825 states and 21121 transitions. Word has length 321 [2021-11-17 01:15:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:15:02,465 INFO L470 AbstractCegarLoop]: Abstraction has 15825 states and 21121 transitions. [2021-11-17 01:15:02,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:15:02,466 INFO L276 IsEmpty]: Start isEmpty. Operand 15825 states and 21121 transitions. [2021-11-17 01:15:02,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-17 01:15:02,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:15:02,476 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:15:02,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 01:15:02,476 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:15:02,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:15:02,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1237373895, now seen corresponding path program 1 times [2021-11-17 01:15:02,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:15:02,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753070983] [2021-11-17 01:15:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:02,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:15:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:15:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:15:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:15:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:15:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:15:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:15:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:15:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:15:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:15:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:15:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:15:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:15:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 01:15:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:15:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 01:15:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 01:15:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 01:15:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 01:15:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:15:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 01:15:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 01:15:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 01:15:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 01:15:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 01:15:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:15:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 01:15:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 01:15:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 01:15:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 01:15:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 01:15:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 01:15:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:15:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 01:15:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 01:15:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:02,870 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-11-17 01:15:02,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:15:02,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753070983] [2021-11-17 01:15:02,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753070983] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:15:02,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539938993] [2021-11-17 01:15:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:02,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:15:02,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:15:02,872 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:15:02,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-17 01:15:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:03,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 3234 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 01:15:03,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:15:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-11-17 01:15:04,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:15:04,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539938993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:15:04,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:15:04,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-11-17 01:15:04,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249809956] [2021-11-17 01:15:04,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:15:04,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:15:04,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:15:04,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:15:04,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:15:04,015 INFO L87 Difference]: Start difference. First operand 15825 states and 21121 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-17 01:15:04,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:15:04,624 INFO L93 Difference]: Finished difference Result 31586 states and 42223 transitions. [2021-11-17 01:15:04,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:15:04,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 321 [2021-11-17 01:15:04,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:15:04,689 INFO L225 Difference]: With dead ends: 31586 [2021-11-17 01:15:04,689 INFO L226 Difference]: Without dead ends: 15825 [2021-11-17 01:15:04,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:15:04,727 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 0 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4233 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:15:04,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4233 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:15:04,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15825 states. [2021-11-17 01:15:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15825 to 15825. [2021-11-17 01:15:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15825 states, 11510 states have (on average 1.2819287576020852) internal successors, (14755), 11763 states have internal predecessors, (14755), 3072 states have call successors, (3072), 1199 states have call predecessors, (3072), 1242 states have return successors, (3280), 3045 states have call predecessors, (3280), 3071 states have call successors, (3280) [2021-11-17 01:15:05,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15825 states to 15825 states and 21107 transitions. [2021-11-17 01:15:05,339 INFO L78 Accepts]: Start accepts. Automaton has 15825 states and 21107 transitions. Word has length 321 [2021-11-17 01:15:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:15:05,339 INFO L470 AbstractCegarLoop]: Abstraction has 15825 states and 21107 transitions. [2021-11-17 01:15:05,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-17 01:15:05,340 INFO L276 IsEmpty]: Start isEmpty. Operand 15825 states and 21107 transitions. [2021-11-17 01:15:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-17 01:15:05,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:15:05,350 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:15:05,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-17 01:15:05,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:15:05,551 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:15:05,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:15:05,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1681274569, now seen corresponding path program 1 times [2021-11-17 01:15:05,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:15:05,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961003327] [2021-11-17 01:15:05,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:05,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:15:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:15:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:15:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:15:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:15:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:15:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:15:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:15:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:15:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:15:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:15:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:15:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:15:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 01:15:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:15:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 01:15:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 01:15:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 01:15:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 01:15:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:15:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 01:15:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 01:15:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 01:15:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 01:15:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 01:15:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:15:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 01:15:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 01:15:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 01:15:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 01:15:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 01:15:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 01:15:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:15:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 01:15:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 01:15:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-11-17 01:15:05,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:15:05,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961003327] [2021-11-17 01:15:05,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961003327] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:15:05,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274251239] [2021-11-17 01:15:05,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:05,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:15:05,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:15:05,960 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:15:05,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-17 01:15:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:06,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 3241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 01:15:06,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:15:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-17 01:15:07,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:15:07,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274251239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:15:07,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:15:07,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 14 [2021-11-17 01:15:07,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329635976] [2021-11-17 01:15:07,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:15:07,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:15:07,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:15:07,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:15:07,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-17 01:15:07,127 INFO L87 Difference]: Start difference. First operand 15825 states and 21107 transitions. Second operand has 6 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-17 01:15:07,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:15:07,859 INFO L93 Difference]: Finished difference Result 31628 states and 42251 transitions. [2021-11-17 01:15:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 01:15:07,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 321 [2021-11-17 01:15:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:15:07,896 INFO L225 Difference]: With dead ends: 31628 [2021-11-17 01:15:07,896 INFO L226 Difference]: Without dead ends: 15825 [2021-11-17 01:15:07,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-11-17 01:15:07,923 INFO L933 BasicCegarLoop]: 2081 mSDtfsCounter, 0 mSDsluCounter, 8277 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10358 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:15:07,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 10358 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 01:15:07,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15825 states. [2021-11-17 01:15:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15825 to 15825. [2021-11-17 01:15:08,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15825 states, 11510 states have (on average 1.2807124239791485) internal successors, (14741), 11763 states have internal predecessors, (14741), 3072 states have call successors, (3072), 1199 states have call predecessors, (3072), 1242 states have return successors, (3280), 3045 states have call predecessors, (3280), 3071 states have call successors, (3280) [2021-11-17 01:15:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15825 states to 15825 states and 21093 transitions. [2021-11-17 01:15:08,609 INFO L78 Accepts]: Start accepts. Automaton has 15825 states and 21093 transitions. Word has length 321 [2021-11-17 01:15:08,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:15:08,609 INFO L470 AbstractCegarLoop]: Abstraction has 15825 states and 21093 transitions. [2021-11-17 01:15:08,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-17 01:15:08,609 INFO L276 IsEmpty]: Start isEmpty. Operand 15825 states and 21093 transitions. [2021-11-17 01:15:08,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-17 01:15:08,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:15:08,619 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:15:08,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-17 01:15:08,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-17 01:15:08,820 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:15:08,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:15:08,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1934420473, now seen corresponding path program 1 times [2021-11-17 01:15:08,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:15:08,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027347886] [2021-11-17 01:15:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:08,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:15:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:15:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:15:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:15:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:15:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:15:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:15:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:15:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:15:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:15:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:15:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:15:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:15:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 01:15:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:15:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 01:15:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 01:15:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 01:15:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 01:15:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:15:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 01:15:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 01:15:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 01:15:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 01:15:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 01:15:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:15:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 01:15:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 01:15:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 01:15:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 01:15:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 01:15:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 01:15:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:15:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 01:15:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 01:15:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:09,190 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-17 01:15:09,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:15:09,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027347886] [2021-11-17 01:15:09,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027347886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:15:09,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:15:09,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 01:15:09,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377919240] [2021-11-17 01:15:09,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:15:09,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 01:15:09,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:15:09,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 01:15:09,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:15:09,193 INFO L87 Difference]: Start difference. First operand 15825 states and 21093 transitions. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:15:11,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:12,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:18,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:21,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:23,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:25,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:27,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:15:27,185 INFO L93 Difference]: Finished difference Result 33934 states and 45790 transitions. [2021-11-17 01:15:27,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 01:15:27,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 321 [2021-11-17 01:15:27,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:15:27,236 INFO L225 Difference]: With dead ends: 33934 [2021-11-17 01:15:27,237 INFO L226 Difference]: Without dead ends: 18173 [2021-11-17 01:15:27,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-11-17 01:15:27,270 INFO L933 BasicCegarLoop]: 1886 mSDtfsCounter, 1928 mSDsluCounter, 5259 mSDsCounter, 0 mSdLazyCounter, 4606 mSolverCounterSat, 1608 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 6218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1608 IncrementalHoareTripleChecker+Valid, 4606 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:15:27,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2057 Valid, 7145 Invalid, 6218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1608 Valid, 4606 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2021-11-17 01:15:27,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18173 states. [2021-11-17 01:15:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18173 to 15849. [2021-11-17 01:15:27,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15849 states, 11534 states have (on average 1.2801283162822958) internal successors, (14765), 11787 states have internal predecessors, (14765), 3072 states have call successors, (3072), 1199 states have call predecessors, (3072), 1242 states have return successors, (3280), 3045 states have call predecessors, (3280), 3071 states have call successors, (3280) [2021-11-17 01:15:27,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15849 states to 15849 states and 21117 transitions. [2021-11-17 01:15:27,901 INFO L78 Accepts]: Start accepts. Automaton has 15849 states and 21117 transitions. Word has length 321 [2021-11-17 01:15:27,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:15:27,902 INFO L470 AbstractCegarLoop]: Abstraction has 15849 states and 21117 transitions. [2021-11-17 01:15:27,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:15:27,902 INFO L276 IsEmpty]: Start isEmpty. Operand 15849 states and 21117 transitions. [2021-11-17 01:15:27,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-17 01:15:27,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:15:27,916 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:15:27,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 01:15:27,916 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:15:27,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:15:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash -956677637, now seen corresponding path program 1 times [2021-11-17 01:15:27,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:15:27,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251608249] [2021-11-17 01:15:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:27,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:15:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:15:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:15:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:15:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:15:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:15:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:15:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:15:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:15:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:15:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:15:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:15:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:15:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 01:15:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:15:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 01:15:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 01:15:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 01:15:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 01:15:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:15:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 01:15:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 01:15:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 01:15:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 01:15:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 01:15:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:15:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 01:15:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 01:15:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 01:15:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 01:15:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 01:15:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 01:15:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:15:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 01:15:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 01:15:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:28,287 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-17 01:15:28,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:15:28,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251608249] [2021-11-17 01:15:28,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251608249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:15:28,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:15:28,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 01:15:28,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516331043] [2021-11-17 01:15:28,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:15:28,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:15:28,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:15:28,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:15:28,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:15:28,290 INFO L87 Difference]: Start difference. First operand 15849 states and 21117 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:15:30,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:35,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:38,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:40,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:42,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:44,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:46,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:15:46,335 INFO L93 Difference]: Finished difference Result 34098 states and 46006 transitions. [2021-11-17 01:15:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 01:15:46,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 321 [2021-11-17 01:15:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:15:46,388 INFO L225 Difference]: With dead ends: 34098 [2021-11-17 01:15:46,388 INFO L226 Difference]: Without dead ends: 18313 [2021-11-17 01:15:46,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-17 01:15:46,414 INFO L933 BasicCegarLoop]: 1886 mSDtfsCounter, 2361 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 2874 mSolverCounterSat, 2115 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 5425 SdHoareTripleChecker+Invalid, 4994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2115 IncrementalHoareTripleChecker+Valid, 2874 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:15:46,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2492 Valid, 5425 Invalid, 4994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2115 Valid, 2874 Invalid, 5 Unknown, 0 Unchecked, 17.1s Time] [2021-11-17 01:15:46,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18313 states. [2021-11-17 01:15:47,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18313 to 15859. [2021-11-17 01:15:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15859 states, 11544 states have (on average 1.279885654885655) internal successors, (14775), 11797 states have internal predecessors, (14775), 3072 states have call successors, (3072), 1199 states have call predecessors, (3072), 1242 states have return successors, (3280), 3045 states have call predecessors, (3280), 3071 states have call successors, (3280) [2021-11-17 01:15:47,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15859 states to 15859 states and 21127 transitions. [2021-11-17 01:15:47,140 INFO L78 Accepts]: Start accepts. Automaton has 15859 states and 21127 transitions. Word has length 321 [2021-11-17 01:15:47,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:15:47,140 INFO L470 AbstractCegarLoop]: Abstraction has 15859 states and 21127 transitions. [2021-11-17 01:15:47,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:15:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 15859 states and 21127 transitions. [2021-11-17 01:15:47,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-17 01:15:47,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:15:47,156 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:15:47,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 01:15:47,156 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:15:47,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:15:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash 56772528, now seen corresponding path program 1 times [2021-11-17 01:15:47,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:15:47,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843807579] [2021-11-17 01:15:47,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:47,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:15:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:15:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:15:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:15:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:15:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:15:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:15:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:15:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:15:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:15:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:15:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:15:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:15:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 01:15:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:15:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 01:15:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 01:15:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 01:15:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 01:15:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:15:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 01:15:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 01:15:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 01:15:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 01:15:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 01:15:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:15:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 01:15:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 01:15:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 01:15:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 01:15:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 01:15:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 01:15:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 01:15:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 01:15:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 01:15:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-17 01:15:47,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:15:47,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843807579] [2021-11-17 01:15:47,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843807579] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:15:47,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579494244] [2021-11-17 01:15:47,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:47,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:15:47,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:15:47,526 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:15:47,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-17 01:15:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:48,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 3256 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 01:15:48,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:15:48,801 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-11-17 01:15:48,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:15:48,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579494244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:15:48,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:15:48,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2021-11-17 01:15:48,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592616905] [2021-11-17 01:15:48,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:15:48,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 01:15:48,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:15:48,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 01:15:48,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:15:48,803 INFO L87 Difference]: Start difference. First operand 15859 states and 21127 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:15:49,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:15:49,373 INFO L93 Difference]: Finished difference Result 32128 states and 42907 transitions. [2021-11-17 01:15:49,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 01:15:49,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 326 [2021-11-17 01:15:49,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:15:49,419 INFO L225 Difference]: With dead ends: 32128 [2021-11-17 01:15:49,419 INFO L226 Difference]: Without dead ends: 16333 [2021-11-17 01:15:49,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-17 01:15:49,450 INFO L933 BasicCegarLoop]: 2160 mSDtfsCounter, 263 mSDsluCounter, 6082 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 8242 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:15:49,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 8242 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:15:49,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16333 states. [2021-11-17 01:15:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16333 to 15841. [2021-11-17 01:15:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15841 states, 11538 states have (on average 1.2789911596463859) internal successors, (14757), 11791 states have internal predecessors, (14757), 3060 states have call successors, (3060), 1199 states have call predecessors, (3060), 1242 states have return successors, (3268), 3033 states have call predecessors, (3268), 3059 states have call successors, (3268) [2021-11-17 01:15:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15841 states to 15841 states and 21085 transitions. [2021-11-17 01:15:50,048 INFO L78 Accepts]: Start accepts. Automaton has 15841 states and 21085 transitions. Word has length 326 [2021-11-17 01:15:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:15:50,049 INFO L470 AbstractCegarLoop]: Abstraction has 15841 states and 21085 transitions. [2021-11-17 01:15:50,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:15:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 15841 states and 21085 transitions. [2021-11-17 01:15:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-17 01:15:50,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:15:50,059 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:15:50,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-17 01:15:50,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:15:50,260 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:15:50,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:15:50,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1325853653, now seen corresponding path program 1 times [2021-11-17 01:15:50,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:15:50,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541889635] [2021-11-17 01:15:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:50,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:15:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:15:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:15:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:15:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:15:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:15:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:15:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:15:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:15:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:15:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:15:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:15:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:15:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 01:15:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:15:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 01:15:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:15:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 01:15:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 01:15:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 01:15:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 01:15:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 01:15:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:15:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 01:15:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 01:15:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 01:15:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 01:15:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 01:15:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 01:15:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 01:15:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 01:15:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 01:15:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 01:15:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 01:15:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:15:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 01:15:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 01:15:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-11-17 01:15:50,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:15:50,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541889635] [2021-11-17 01:15:50,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541889635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:15:50,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:15:50,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 01:15:50,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623986199] [2021-11-17 01:15:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:15:50,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 01:15:50,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:15:50,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 01:15:50,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:15:50,677 INFO L87 Difference]: Start difference. First operand 15841 states and 21085 transitions. Second operand has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (41), 6 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 01:15:52,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:59,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:01,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:05,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:16:05,933 INFO L93 Difference]: Finished difference Result 40835 states and 56590 transitions. [2021-11-17 01:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 01:16:05,934 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (41), 6 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 338 [2021-11-17 01:16:05,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:16:06,013 INFO L225 Difference]: With dead ends: 40835 [2021-11-17 01:16:06,013 INFO L226 Difference]: Without dead ends: 25058 [2021-11-17 01:16:06,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-11-17 01:16:06,043 INFO L933 BasicCegarLoop]: 2342 mSDtfsCounter, 3384 mSDsluCounter, 12146 mSDsCounter, 0 mSdLazyCounter, 7800 mSolverCounterSat, 2653 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 14488 SdHoareTripleChecker+Invalid, 10455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2653 IncrementalHoareTripleChecker+Valid, 7800 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:16:06,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3671 Valid, 14488 Invalid, 10455 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2653 Valid, 7800 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2021-11-17 01:16:06,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25058 states. [2021-11-17 01:16:06,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25058 to 15861. [2021-11-17 01:16:06,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15861 states, 11558 states have (on average 1.2785083924554421) internal successors, (14777), 11807 states have internal predecessors, (14777), 3060 states have call successors, (3060), 1199 states have call predecessors, (3060), 1242 states have return successors, (3268), 3037 states have call predecessors, (3268), 3059 states have call successors, (3268) [2021-11-17 01:16:06,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15861 states to 15861 states and 21105 transitions. [2021-11-17 01:16:06,656 INFO L78 Accepts]: Start accepts. Automaton has 15861 states and 21105 transitions. Word has length 338 [2021-11-17 01:16:06,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:16:06,656 INFO L470 AbstractCegarLoop]: Abstraction has 15861 states and 21105 transitions. [2021-11-17 01:16:06,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (41), 6 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 01:16:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 15861 states and 21105 transitions. [2021-11-17 01:16:06,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-11-17 01:16:06,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:16:06,730 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:16:06,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 01:16:06,730 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:16:06,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:16:06,731 INFO L85 PathProgramCache]: Analyzing trace with hash 867655390, now seen corresponding path program 1 times [2021-11-17 01:16:06,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:16:06,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71437648] [2021-11-17 01:16:06,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:16:06,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:16:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:16:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:16:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:16:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:16:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:16:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:16:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:16:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:16:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:16:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:16:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:16:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:16:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 01:16:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 01:16:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 01:16:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:16:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 01:16:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 01:16:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 01:16:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 01:16:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 01:16:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:16:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 01:16:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 01:16:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 01:16:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 01:16:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 01:16:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 01:16:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 01:16:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 01:16:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 01:16:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 01:16:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 01:16:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 01:16:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 01:16:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 01:16:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 01:16:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-17 01:16:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2021-11-17 01:16:07,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:16:07,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71437648] [2021-11-17 01:16:07,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71437648] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:16:07,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836165268] [2021-11-17 01:16:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:16:07,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:16:07,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:16:07,340 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:16:07,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-17 01:16:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:08,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 3290 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-17 01:16:08,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:16:08,958 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 164 proven. 10 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2021-11-17 01:16:08,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:16:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2021-11-17 01:16:09,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836165268] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:16:09,750 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 01:16:09,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2021-11-17 01:16:09,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180982504] [2021-11-17 01:16:09,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 01:16:09,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-17 01:16:09,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:16:09,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-17 01:16:09,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2021-11-17 01:16:09,752 INFO L87 Difference]: Start difference. First operand 15861 states and 21105 transitions. Second operand has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 19 states have internal predecessors, (228), 2 states have call successors, (89), 6 states have call predecessors, (89), 5 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-17 01:16:11,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:21,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:23,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:25,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:27,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:31,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:33,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:35,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:16:35,589 INFO L93 Difference]: Finished difference Result 34070 states and 45914 transitions. [2021-11-17 01:16:35,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-17 01:16:35,590 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 19 states have internal predecessors, (228), 2 states have call successors, (89), 6 states have call predecessors, (89), 5 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 358 [2021-11-17 01:16:35,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:16:35,638 INFO L225 Difference]: With dead ends: 34070 [2021-11-17 01:16:35,638 INFO L226 Difference]: Without dead ends: 18200 [2021-11-17 01:16:35,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 791 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=506, Invalid=1750, Unknown=0, NotChecked=0, Total=2256 [2021-11-17 01:16:35,674 INFO L933 BasicCegarLoop]: 1886 mSDtfsCounter, 1959 mSDsluCounter, 12582 mSDsCounter, 0 mSdLazyCounter, 8472 mSolverCounterSat, 1665 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 14468 SdHoareTripleChecker+Invalid, 10143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1665 IncrementalHoareTripleChecker+Valid, 8472 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:16:35,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2089 Valid, 14468 Invalid, 10143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1665 Valid, 8472 Invalid, 6 Unknown, 0 Unchecked, 24.1s Time] [2021-11-17 01:16:35,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18200 states. [2021-11-17 01:16:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18200 to 15889. [2021-11-17 01:16:36,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15889 states, 11586 states have (on average 1.2778353184878302) internal successors, (14805), 11835 states have internal predecessors, (14805), 3060 states have call successors, (3060), 1199 states have call predecessors, (3060), 1242 states have return successors, (3268), 3037 states have call predecessors, (3268), 3059 states have call successors, (3268) [2021-11-17 01:16:36,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15889 states to 15889 states and 21133 transitions. [2021-11-17 01:16:36,248 INFO L78 Accepts]: Start accepts. Automaton has 15889 states and 21133 transitions. Word has length 358 [2021-11-17 01:16:36,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:16:36,248 INFO L470 AbstractCegarLoop]: Abstraction has 15889 states and 21133 transitions. [2021-11-17 01:16:36,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 19 states have internal predecessors, (228), 2 states have call successors, (89), 6 states have call predecessors, (89), 5 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-17 01:16:36,249 INFO L276 IsEmpty]: Start isEmpty. Operand 15889 states and 21133 transitions. [2021-11-17 01:16:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2021-11-17 01:16:36,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:16:36,262 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:16:36,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-17 01:16:36,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-17 01:16:36,463 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:16:36,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:16:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash 32756318, now seen corresponding path program 2 times [2021-11-17 01:16:36,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:16:36,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829731352] [2021-11-17 01:16:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:16:36,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:16:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:16:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:16:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:16:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:16:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:16:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:16:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:16:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:16:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:16:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:16:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 01:16:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 01:16:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 01:16:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 01:16:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 01:16:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:16:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 01:16:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 01:16:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:36,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 01:16:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 01:16:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 01:16:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:16:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 01:16:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 01:16:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 01:16:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:16:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 01:16:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 01:16:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 01:16:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 01:16:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 01:16:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 01:16:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 01:16:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 01:16:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 01:16:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 01:16:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:16:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 01:16:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-11-17 01:16:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:16:37,267 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-17 01:16:37,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:16:37,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829731352] [2021-11-17 01:16:37,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829731352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:16:37,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:16:37,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-17 01:16:37,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425487231] [2021-11-17 01:16:37,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:16:37,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 01:16:37,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:16:37,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 01:16:37,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-11-17 01:16:37,269 INFO L87 Difference]: Start difference. First operand 15889 states and 21133 transitions. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-17 01:16:45,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:47,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:51,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:53,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:55,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:57,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:59,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:17:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:17:02,398 INFO L93 Difference]: Finished difference Result 41460 states and 57580 transitions. [2021-11-17 01:17:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-17 01:17:02,400 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 366 [2021-11-17 01:17:02,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:17:02,471 INFO L225 Difference]: With dead ends: 41460 [2021-11-17 01:17:02,472 INFO L226 Difference]: Without dead ends: 25639 [2021-11-17 01:17:02,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2021-11-17 01:17:02,502 INFO L933 BasicCegarLoop]: 2358 mSDtfsCounter, 5008 mSDsluCounter, 13058 mSDsCounter, 0 mSdLazyCounter, 8091 mSolverCounterSat, 3389 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 15416 SdHoareTripleChecker+Invalid, 11486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3389 IncrementalHoareTripleChecker+Valid, 8091 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2021-11-17 01:17:02,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5295 Valid, 15416 Invalid, 11486 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3389 Valid, 8091 Invalid, 6 Unknown, 0 Unchecked, 23.7s Time] [2021-11-17 01:17:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25639 states. [2021-11-17 01:17:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25639 to 15889. [2021-11-17 01:17:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15889 states, 11586 states have (on average 1.2778353184878302) internal successors, (14805), 11835 states have internal predecessors, (14805), 3060 states have call successors, (3060), 1199 states have call predecessors, (3060), 1242 states have return successors, (3268), 3037 states have call predecessors, (3268), 3059 states have call successors, (3268) [2021-11-17 01:17:03,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15889 states to 15889 states and 21133 transitions. [2021-11-17 01:17:03,155 INFO L78 Accepts]: Start accepts. Automaton has 15889 states and 21133 transitions. Word has length 366 [2021-11-17 01:17:03,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:17:03,155 INFO L470 AbstractCegarLoop]: Abstraction has 15889 states and 21133 transitions. [2021-11-17 01:17:03,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-17 01:17:03,155 INFO L276 IsEmpty]: Start isEmpty. Operand 15889 states and 21133 transitions. [2021-11-17 01:17:03,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-17 01:17:03,164 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:17:03,165 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:17:03,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 01:17:03,165 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:17:03,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:17:03,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1416532779, now seen corresponding path program 1 times [2021-11-17 01:17:03,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:17:03,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312812522] [2021-11-17 01:17:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:17:03,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:17:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:17:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:17:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:17:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:17:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:17:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:17:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:17:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:17:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:17:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:17:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 01:17:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 01:17:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 01:17:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 01:17:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 01:17:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:17:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 01:17:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:17:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 01:17:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 01:17:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 01:17:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 01:17:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 01:17:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 01:17:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 01:17:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:17:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 01:17:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 01:17:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 01:17:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 01:17:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 01:17:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 01:17:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 01:17:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 01:17:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:17:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 01:17:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:17:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 01:17:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:17:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 01:17:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 01:17:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:03,949 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2021-11-17 01:17:03,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:17:03,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312812522] [2021-11-17 01:17:03,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312812522] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:17:03,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215136322] [2021-11-17 01:17:03,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:17:03,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:17:03,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:17:03,952 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:17:03,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-17 01:17:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:17:06,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 3277 conjuncts, 90 conjunts are in the unsatisfiable core [2021-11-17 01:17:06,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:17:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2021-11-17 01:17:07,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:17:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2021-11-17 01:17:09,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215136322] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:17:09,047 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 01:17:09,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 13] total 41 [2021-11-17 01:17:09,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768914528] [2021-11-17 01:17:09,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 01:17:09,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-17 01:17:09,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:17:09,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-17 01:17:09,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1526, Unknown=0, NotChecked=0, Total=1640 [2021-11-17 01:17:09,049 INFO L87 Difference]: Start difference. First operand 15889 states and 21133 transitions. Second operand has 41 states, 36 states have (on average 7.194444444444445) internal successors, (259), 27 states have internal predecessors, (259), 12 states have call successors, (89), 7 states have call predecessors, (89), 12 states have return successors, (69), 17 states have call predecessors, (69), 12 states have call successors, (69) [2021-11-17 01:17:40,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:17:42,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:17:55,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:17:57,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:18:02,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:18:04,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:18:06,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:18:08,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:18:10,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:18:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:18:42,856 INFO L93 Difference]: Finished difference Result 74324 states and 105522 transitions. [2021-11-17 01:18:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-17 01:18:42,857 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 36 states have (on average 7.194444444444445) internal successors, (259), 27 states have internal predecessors, (259), 12 states have call successors, (89), 7 states have call predecessors, (89), 12 states have return successors, (69), 17 states have call predecessors, (69), 12 states have call successors, (69) Word has length 352 [2021-11-17 01:18:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:18:43,170 INFO L225 Difference]: With dead ends: 74324 [2021-11-17 01:18:43,170 INFO L226 Difference]: Without dead ends: 58503 [2021-11-17 01:18:43,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 878 GetRequests, 777 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=931, Invalid=9371, Unknown=0, NotChecked=0, Total=10302 [2021-11-17 01:18:43,209 INFO L933 BasicCegarLoop]: 3924 mSDtfsCounter, 14826 mSDsluCounter, 78083 mSDsCounter, 0 mSdLazyCounter, 50723 mSolverCounterSat, 11021 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15466 SdHoareTripleChecker+Valid, 82007 SdHoareTripleChecker+Invalid, 61753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 11021 IncrementalHoareTripleChecker+Valid, 50723 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.4s IncrementalHoareTripleChecker+Time [2021-11-17 01:18:43,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15466 Valid, 82007 Invalid, 61753 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [11021 Valid, 50723 Invalid, 9 Unknown, 0 Unchecked, 87.4s Time] [2021-11-17 01:18:43,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58503 states. [2021-11-17 01:18:44,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58503 to 15889. [2021-11-17 01:18:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15889 states, 11586 states have (on average 1.2778353184878302) internal successors, (14805), 11835 states have internal predecessors, (14805), 3060 states have call successors, (3060), 1199 states have call predecessors, (3060), 1242 states have return successors, (3268), 3037 states have call predecessors, (3268), 3059 states have call successors, (3268) [2021-11-17 01:18:44,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15889 states to 15889 states and 21133 transitions. [2021-11-17 01:18:44,231 INFO L78 Accepts]: Start accepts. Automaton has 15889 states and 21133 transitions. Word has length 352 [2021-11-17 01:18:44,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:18:44,231 INFO L470 AbstractCegarLoop]: Abstraction has 15889 states and 21133 transitions. [2021-11-17 01:18:44,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 36 states have (on average 7.194444444444445) internal successors, (259), 27 states have internal predecessors, (259), 12 states have call successors, (89), 7 states have call predecessors, (89), 12 states have return successors, (69), 17 states have call predecessors, (69), 12 states have call successors, (69) [2021-11-17 01:18:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 15889 states and 21133 transitions. [2021-11-17 01:18:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-11-17 01:18:44,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:18:44,243 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:18:44,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-17 01:18:44,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-17 01:18:44,443 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:18:44,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:18:44,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1627536864, now seen corresponding path program 1 times [2021-11-17 01:18:44,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:18:44,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105670259] [2021-11-17 01:18:44,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:18:44,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:18:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-17 01:18:45,480 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-17 01:18:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-17 01:18:46,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-17 01:18:46,784 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-17 01:18:46,785 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 01:18:46,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 01:18:46,789 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:18:46,792 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-17 01:18:46,846 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-17 01:18:46,848 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-17 01:18:46,849 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-17 01:18:47,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 01:18:47 BoogieIcfgContainer [2021-11-17 01:18:47,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-17 01:18:47,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-17 01:18:47,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-17 01:18:47,185 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-17 01:18:47,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:10:31" (3/4) ... [2021-11-17 01:18:47,187 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-17 01:18:47,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-17 01:18:47,188 INFO L158 Benchmark]: Toolchain (without parser) took 505055.82ms. Allocated memory was 90.2MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 62.9MB in the beginning and 616.9MB in the end (delta: -554.0MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2021-11-17 01:18:47,188 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-17 01:18:47,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2438.34ms. Allocated memory was 90.2MB in the beginning and 165.7MB in the end (delta: 75.5MB). Free memory was 62.6MB in the beginning and 78.5MB in the end (delta: -15.9MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2021-11-17 01:18:47,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.35ms. Allocated memory is still 165.7MB. Free memory was 78.5MB in the beginning and 51.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-17 01:18:47,189 INFO L158 Benchmark]: Boogie Preprocessor took 241.38ms. Allocated memory is still 165.7MB. Free memory was 51.2MB in the beginning and 65.6MB in the end (delta: -14.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-11-17 01:18:47,189 INFO L158 Benchmark]: RCFGBuilder took 6752.91ms. Allocated memory was 165.7MB in the beginning and 432.0MB in the end (delta: 266.3MB). Free memory was 65.6MB in the beginning and 212.0MB in the end (delta: -146.4MB). Peak memory consumption was 221.7MB. Max. memory is 16.1GB. [2021-11-17 01:18:47,189 INFO L158 Benchmark]: TraceAbstraction took 495376.03ms. Allocated memory was 432.0MB in the beginning and 1.9GB in the end (delta: 1.5GB). Free memory was 212.0MB in the beginning and 617.9MB in the end (delta: -405.9MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2021-11-17 01:18:47,189 INFO L158 Benchmark]: Witness Printer took 3.32ms. Allocated memory is still 1.9GB. Free memory was 617.9MB in the beginning and 616.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-17 01:18:47,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2438.34ms. Allocated memory was 90.2MB in the beginning and 165.7MB in the end (delta: 75.5MB). Free memory was 62.6MB in the beginning and 78.5MB in the end (delta: -15.9MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.35ms. Allocated memory is still 165.7MB. Free memory was 78.5MB in the beginning and 51.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 241.38ms. Allocated memory is still 165.7MB. Free memory was 51.2MB in the beginning and 65.6MB in the end (delta: -14.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6752.91ms. Allocated memory was 165.7MB in the beginning and 432.0MB in the end (delta: 266.3MB). Free memory was 65.6MB in the beginning and 212.0MB in the end (delta: -146.4MB). Peak memory consumption was 221.7MB. Max. memory is 16.1GB. * TraceAbstraction took 495376.03ms. Allocated memory was 432.0MB in the beginning and 1.9GB in the end (delta: 1.5GB). Free memory was 212.0MB in the beginning and 617.9MB in the end (delta: -405.9MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 3.32ms. Allocated memory is still 1.9GB. Free memory was 617.9MB in the beginning and 616.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6519]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 10308, overapproximation of bitwiseOr at line 9124, overapproximation of bitwiseAnd at line 11229. Possible FailurePath: [L6542] int LDV_IN_INTERRUPT = 1; [L6543] struct net_device *xennet_ethtool_ops_group0 ; [L6544] int ldv_state_variable_0 ; [L6545] int ldv_state_variable_3 ; [L6546] int ldv_timer_state_1 = 0; [L6547] int ldv_state_variable_2 ; [L6548] int ref_cnt ; [L6549] int ldv_state_variable_1 ; [L6550] struct xenbus_device *netfront_driver_group0 ; [L6551] struct net_device *xennet_netdev_ops_group1 ; [L6552] struct timer_list *ldv_timer_list_1 ; [L6553] int ldv_state_variable_4 ; [L7304] static unsigned int xennet_max_queues ; [L9063-L9069] static struct net_device_ops const xennet_netdev_ops = {0, & xennet_uninit, & xennet_open, & xennet_close, (netdev_tx_t (*)(struct sk_buff * , struct net_device * ))(& xennet_start_xmit), & xennet_select_queue, 0, 0, & eth_mac_addr, & eth_validate_addr, 0, 0, & xennet_change_mtu, 0, 0, & xennet_get_stats64, 0, 0, 0, & xennet_poll_controller, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & xennet_fix_features, & xennet_set_features, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L10003-L10004] static struct xennet_stat const xennet_stats[1U] = { {{'r', 'x', '_', 'g', 's', 'o', '_', 'c', 'h', 'e', 'c', 'k', 's', 'u', 'm', '_', 'f', 'i', 'x', 'u', 'p', '\000'}, 48U}}; [L10071-L10074] static struct ethtool_ops const xennet_ethtool_ops = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & ethtool_op_get_link, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & xennet_get_strings, 0, & xennet_get_ethtool_stats, 0, 0, 0, 0, & xennet_get_sset_count, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L10308-L10317] static struct device_attribute xennet_attrs[3U] = { {{"rxbuf_min", 420U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_rxbuf_min, & store_rxbuf_min}, {{"rxbuf_max", 420U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_rxbuf_max, & store_rxbuf_max}, {{"rxbuf_cur", 292U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_rxbuf_cur, (ssize_t (*)(struct device * , struct device_attribute * , char const * , size_t ))0}}; [L10368-L10369] static struct xenbus_device_id const netfront_ids[2U] = { {{'v', 'i', 'f', '\000'}}, {{'\000'}}}; [L10421-L10425] static struct xenbus_driver netfront_driver = {(struct xenbus_device_id const *)(& netfront_ids), & netfront_probe, & netback_changed, & xennet_remove, 0, & netfront_resume, 0, {(char const *)(& netfront_ids), 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0, 0}; [L10460] int ldv_retval_2 ; [L10461] u16 (*ldvarg6)(struct net_device * , struct sk_buff * ) ; [L10462] int ldv_retval_0 ; [L10463] int ldv_retval_4 ; [L10465] int ldv_retval_1 ; [L10467] int ldv_retval_3 ; [L11225] int ldv_spin = 0; VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10545] void *ldvarg7 ; [L10546] void *tmp ; [L10547] struct sk_buff *ldvarg3 ; [L10548] void *tmp___0 ; [L10549] struct rtnl_link_stats64 *ldvarg0 ; [L10550] void *tmp___1 ; [L10551] netdev_features_t ldvarg5 ; [L10552] void *ldvarg1 ; [L10553] void *tmp___2 ; [L10554] struct sk_buff *ldvarg8 ; [L10555] void *tmp___3 ; [L10556] int ldvarg4 ; [L10557] int tmp___4 ; [L10558] netdev_features_t ldvarg2 ; [L10559] u64 *ldvarg11 ; [L10560] void *tmp___5 ; [L10561] int ldvarg13 ; [L10562] int tmp___6 ; [L10563] u32 ldvarg10 ; [L10564] u32 tmp___7 ; [L10565] struct ethtool_stats *ldvarg12 ; [L10566] void *tmp___8 ; [L10567] u8 *ldvarg9 ; [L10568] void *tmp___9 ; [L10569] enum xenbus_state ldvarg14 ; [L10570] struct xenbus_device_id *ldvarg15 ; [L10571] void *tmp___10 ; [L10572] int tmp___11 ; [L10573] int tmp___12 ; [L10574] int tmp___13 ; [L10575] int tmp___14 ; [L10576] int tmp___15 ; VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg5={251:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10578] CALL, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=1, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=1, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10578] RET, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg5={251:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10578] tmp = ldv_zalloc(1UL) [L10579] ldvarg7 = tmp VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg5={251:0}, ldvarg7={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10580] CALL, EXPR ldv_zalloc(232UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=232, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=232, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10580] RET, EXPR ldv_zalloc(232UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg5={251:0}, ldvarg7={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10580] tmp___0 = ldv_zalloc(232UL) [L10581] ldvarg3 = (struct sk_buff *)tmp___0 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg5={251:0}, ldvarg7={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10582] CALL, EXPR ldv_zalloc(184UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=184, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=184, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10582] RET, EXPR ldv_zalloc(184UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(184UL)={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg5={251:0}, ldvarg7={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10582] tmp___1 = ldv_zalloc(184UL) [L10583] ldvarg0 = (struct rtnl_link_stats64 *)tmp___1 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg5={251:0}, ldvarg7={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10584] CALL, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=1, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=1, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10584] RET, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg5={251:0}, ldvarg7={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10584] tmp___2 = ldv_zalloc(1UL) [L10585] ldvarg1 = tmp___2 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg5={251:0}, ldvarg7={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10586] CALL, EXPR ldv_zalloc(232UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=232, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=232, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10586] RET, EXPR ldv_zalloc(232UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg5={251:0}, ldvarg7={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10586] tmp___3 = ldv_zalloc(232UL) [L10587] ldvarg8 = (struct sk_buff *)tmp___3 [L10588] tmp___4 = __VERIFIER_nondet_int() [L10589] ldvarg4 = tmp___4 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10590] CALL, EXPR ldv_zalloc(8UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=8, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=8, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10590] RET, EXPR ldv_zalloc(8UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10590] tmp___5 = ldv_zalloc(8UL) [L10591] ldvarg11 = (u64 *)tmp___5 [L10592] tmp___6 = __VERIFIER_nondet_int() [L10593] ldvarg13 = tmp___6 [L10594] tmp___7 = __VERIFIER_nondet_u32() [L10595] ldvarg10 = tmp___7 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10596] CALL, EXPR ldv_zalloc(8UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=8, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=8, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10596] RET, EXPR ldv_zalloc(8UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10596] tmp___8 = ldv_zalloc(8UL) [L10597] ldvarg12 = (struct ethtool_stats *)tmp___8 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10598] CALL, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=1, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=1, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10598] RET, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10598] tmp___9 = ldv_zalloc(1UL) [L10599] ldvarg9 = (u8 *)tmp___9 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10600] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=32, \result={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, size=32, tmp___0=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10600] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(32UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10600] tmp___10 = ldv_zalloc(32UL) [L10601] ldvarg15 = (struct xenbus_device_id *)tmp___10 [L10602] FCALL ldv_initialize() [L10603] FCALL memset((void *)(& ldvarg5), 0, 8UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, memset((void *)(& ldvarg5), 0, 8UL)={251:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10604] FCALL memset((void *)(& ldvarg2), 0, 8UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, memset((void *)(& ldvarg2), 0, 8UL)={253:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10605] FCALL memset((void *)(& ldvarg14), 0, 4UL) VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, memset((void *)(& ldvarg14), 0, 4UL)={252:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10606] ldv_state_variable_4 = 0 [L10607] ldv_state_variable_1 = 1 [L10608] ref_cnt = 0 [L10609] ldv_state_variable_0 = 1 [L10610] ldv_state_variable_3 = 0 [L10611] ldv_state_variable_2 = 0 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10613] tmp___11 = __VERIFIER_nondet_int() [L10615] case 0: [L10800] case 1: [L10806] case 2: VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=2, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10807] COND TRUE ldv_state_variable_0 != 0 [L10808] tmp___13 = __VERIFIER_nondet_int() [L10810] case 0: [L10818] case 1: VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=2, tmp___13=1, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10819] COND TRUE ldv_state_variable_0 == 1 [L10820] CALL, EXPR netif_init() [L10428] bool tmp ; [L10429] int tmp___0 ; [L10430] int tmp___1 ; VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10432] COND FALSE !((unsigned int )xen_domain_type == 0U) [L10436] CALL, EXPR xen_has_pv_nic_devices() [L11590] return __VERIFIER_nondet_bool(); [L10436] RET, EXPR xen_has_pv_nic_devices() [L10436] tmp = xen_has_pv_nic_devices() [L10437] COND TRUE \read(tmp) [L10438] tmp___0 = 0 VAL [={0:0}, __this_module={42949672972:42949672951}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, ref_cnt=0, tmp=1, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10442] COND FALSE !(\read(tmp___0)) [L10447] CALL, EXPR cpumask_weight(cpu_online_mask) [L6177] int tmp ; [L6179] CALL, EXPR bitmap_weight((unsigned long const *)(& srcp->bits), nr_cpu_ids) [L6124] int tmp___0 ; [L6126] CALL, EXPR __bitmap_weight(src, nbits) [L11291] return __VERIFIER_nondet_int(); [L6126] RET, EXPR __bitmap_weight(src, nbits) [L6126] tmp___0 = __bitmap_weight(src, nbits) [L6127] return (tmp___0); VAL [={0:0}, \old(nbits)=-6, \result=123, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, nbits=-6, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, src={42949672971:42949672952}, src={42949672971:42949672952}, tmp___0=123, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6179] RET, EXPR bitmap_weight((unsigned long const *)(& srcp->bits), nr_cpu_ids) [L6179] tmp = bitmap_weight((unsigned long const *)(& srcp->bits), nr_cpu_ids) [L6180] return ((unsigned int )tmp); VAL [={0:0}, \result=123, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, srcp={42949672971:42949672952}, srcp={42949672971:42949672952}, tmp=123, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10447] RET, EXPR cpumask_weight(cpu_online_mask) [L10447] xennet_max_queues = cpumask_weight(cpu_online_mask) [L10448] CALL, EXPR xenbus_register_frontend(& netfront_driver) [L11620] return __VERIFIER_nondet_int(); [L10448] RET, EXPR xenbus_register_frontend(& netfront_driver) [L10448] tmp___1 = xenbus_register_frontend(& netfront_driver) [L10449] return (tmp___1); VAL [={0:0}, \result=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp=1, tmp___0=0, tmp___1=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10820] RET, EXPR netif_init() [L10820] ldv_retval_2 = netif_init() [L10821] COND FALSE !(ldv_retval_2 != 0) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=2, tmp___13=1, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10826] COND TRUE ldv_retval_2 == 0 [L10827] ldv_state_variable_0 = 2 [L10828] ldv_state_variable_2 = 1 [L10829] CALL ldv_initialize_xenbus_driver_2() [L10516] void *tmp ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10518] CALL, EXPR ldv_zalloc(1664UL) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=1664, \result={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, size=1664, tmp___0=1, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10518] RET, EXPR ldv_zalloc(1664UL) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1664UL)={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10518] tmp = ldv_zalloc(1664UL) [L10519] netfront_driver_group0 = (struct xenbus_device *)tmp VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10829] RET ldv_initialize_xenbus_driver_2() [L10830] ldv_state_variable_3 = 1 [L10831] CALL ldv_initialize_ethtool_ops_3() [L10525] void *tmp ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10527] CALL, EXPR ldv_zalloc(3264UL) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=3264, \result={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, size=3264, tmp___0=1, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10527] RET, EXPR ldv_zalloc(3264UL) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10527] tmp = ldv_zalloc(3264UL) [L10528] xennet_ethtool_ops_group0 = (struct net_device *)tmp VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10831] RET ldv_initialize_ethtool_ops_3() [L10613] tmp___11 = __VERIFIER_nondet_int() [L10615] case 0: [L10800] case 1: [L10806] case 2: [L10844] case 3: [L10883] case 4: VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=4, tmp___13=1, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10884] COND TRUE ldv_state_variable_2 != 0 [L10885] tmp___15 = __VERIFIER_nondet_int() [L10887] case 0: VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=4, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10888] COND TRUE ldv_state_variable_2 == 1 [L10889] CALL, EXPR netfront_probe(netfront_driver_group0, (struct xenbus_device_id const *)ldvarg15) [L9139] int err ; [L9140] struct net_device *netdev ; [L9141] struct netfront_info *info ; [L9142] long tmp ; [L9143] bool tmp___0 ; [L9144] void *tmp___1 ; [L9146] CALL, EXPR xennet_create_dev(dev) [L9072] int err ; [L9073] struct net_device *netdev ; [L9074] struct netfront_info *np ; [L9075] void *tmp ; [L9076] void *tmp___0 ; [L9077] struct netfront_stats *pcpu_stats ; [L9078] void *tmp___1 ; [L9079] int i ; [L9080] struct netfront_stats *stat ; [L9081] void const *__vpp_verify ; [L9082] unsigned long __ptr ; [L9083] unsigned int tmp___2 ; [L9084] void *tmp___3 ; [L9086] CALL, EXPR alloc_etherdev_mqs(56, xennet_max_queues, xennet_max_queues) [L11368] CALL, EXPR ldv_malloc(sizeof(struct net_device)) VAL [={0:0}, \old(size)=3017, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6465] void *p ; [L6466] void *tmp ; [L6467] int tmp___0 ; [L6469] tmp___0 = __VERIFIER_nondet_int() [L6470] COND FALSE !(tmp___0 != 0) [L6473] tmp = malloc(size) [L6474] p = tmp VAL [={0:0}, \old(size)=3017, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={122:0}, ref_cnt=0, size=3017, tmp={122:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6475] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, \old(cond)=1, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6460] COND FALSE !(!cond) VAL [={0:0}, \old(cond)=1, __this_module={42949672972:42949672951}, cond=1, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6475] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, \old(size)=3017, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={122:0}, ref_cnt=0, size=3017, tmp={122:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6476] CALL, EXPR IS_ERR(p) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={122:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6295] long tmp ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={122:0}, ptr={122:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \result=0, __this_module={42949672972:42949672951}, c=0, cpu_online_mask={42949672971:42949672952}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={122:0}, ptr={122:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6298] return (tmp != 0L); VAL [={0:0}, \result=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={122:0}, ptr={122:0}, ref_cnt=0, tmp=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6476] RET, EXPR IS_ERR(p) VAL [={0:0}, \old(size)=3017, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={122:0}, ref_cnt=0, size=3017, tmp={122:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6476] CALL assume_abort_if_not(IS_ERR(p) == 0) VAL [={0:0}, \old(cond)=1, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6460] COND FALSE !(!cond) VAL [={0:0}, \old(cond)=1, __this_module={42949672972:42949672951}, cond=1, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6476] RET assume_abort_if_not(IS_ERR(p) == 0) VAL [={0:0}, \old(size)=3017, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={122:0}, ref_cnt=0, size=3017, tmp={122:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6477] return (p); VAL [={0:0}, \old(size)=3017, \result={122:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={122:0}, ref_cnt=0, size=3017, tmp={122:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11368] RET, EXPR ldv_malloc(sizeof(struct net_device)) VAL [={0:0}, \old(arg0)=null, \old(arg1)=123, \old(arg2)=123, __this_module={42949672972:42949672951}, arg0=null, arg1=123, arg2=123, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct net_device))={122:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11368] return ldv_malloc(sizeof(struct net_device)); [L9086] RET, EXPR alloc_etherdev_mqs(56, xennet_max_queues, xennet_max_queues) [L9086] netdev = alloc_etherdev_mqs(56, xennet_max_queues, xennet_max_queues) [L9087] COND FALSE !((unsigned long )netdev == (unsigned long )((struct net_device *)0)) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9092] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, dev={122:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7015] return ((void *)dev + 3264U); VAL [={0:0}, \result={122:3264}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, dev={122:0}, dev={122:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9092] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev_priv((struct net_device const *)netdev)={122:3264}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9092] tmp___0 = netdev_priv((struct net_device const *)netdev) [L9093] np = (struct netfront_info *)tmp___0 [L9094] np->xbdev = dev VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, ref_cnt=0, tmp___0={122:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9095] CALL netif_set_real_num_tx_queues(netdev, 0U) VAL [={0:0}, \old(arg1)=0, __this_module={42949672972:42949672951}, arg0={122:0}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11526] return __VERIFIER_nondet_int(); [L9095] RET netif_set_real_num_tx_queues(netdev, 0U) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, netif_set_real_num_tx_queues(netdev, 0U)=124, np={122:3264}, nr_cpu_ids=-6, ref_cnt=0, tmp___0={122:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9096] np->queues = (struct netfront_queue *)0 [L9097] err = -12 [L9098] CALL, EXPR __alloc_percpu(32UL, 8UL) [L11287] CALL, EXPR ldv_malloc(0UL) VAL [={0:0}, \old(size)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6465] void *p ; [L6466] void *tmp ; [L6467] int tmp___0 ; [L6469] tmp___0 = __VERIFIER_nondet_int() [L6470] COND FALSE !(tmp___0 != 0) [L6473] tmp = malloc(size) [L6474] p = tmp VAL [={0:0}, \old(size)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={-4096:0}, ref_cnt=0, size=0, tmp={-4096:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6475] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, \old(cond)=1, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6460] COND FALSE !(!cond) VAL [={0:0}, \old(cond)=1, __this_module={42949672972:42949672951}, cond=1, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6475] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, \old(size)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={-4096:0}, ref_cnt=0, size=0, tmp={-4096:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6476] CALL, EXPR IS_ERR(p) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={-4096:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6295] long tmp ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={-4096:0}, ptr={-4096:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \result=0, __this_module={42949672972:42949672951}, c=0, cpu_online_mask={42949672971:42949672952}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={-4096:0}, ptr={-4096:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6298] return (tmp != 0L); VAL [={0:0}, \result=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={-4096:0}, ptr={-4096:0}, ref_cnt=0, tmp=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6476] RET, EXPR IS_ERR(p) VAL [={0:0}, \old(size)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={-4096:0}, ref_cnt=0, size=0, tmp={-4096:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6476] CALL assume_abort_if_not(IS_ERR(p) == 0) VAL [={0:0}, \old(cond)=1, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6460] COND FALSE !(!cond) VAL [={0:0}, \old(cond)=1, __this_module={42949672972:42949672951}, cond=1, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6476] RET assume_abort_if_not(IS_ERR(p) == 0) VAL [={0:0}, \old(size)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={-4096:0}, ref_cnt=0, size=0, tmp={-4096:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6477] return (p); VAL [={0:0}, \old(size)=0, \result={-4096:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, p={-4096:0}, ref_cnt=0, size=0, tmp={-4096:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11287] RET, EXPR ldv_malloc(0UL) VAL [={0:0}, \old(arg0)=null, \old(arg1)=8, __this_module={42949672972:42949672951}, arg0=null, arg1=8, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-4096:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11287] return ldv_malloc(0UL); [L9098] RET, EXPR __alloc_percpu(32UL, 8UL) [L9098] tmp___1 = __alloc_percpu(32UL, 8UL) [L9099] pcpu_stats = (struct netfront_stats *)tmp___1 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, dev={0:0}, dev={0:0}, err=-12, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9100] COND TRUE (unsigned long )pcpu_stats != (unsigned long )((struct netfront_stats *)0) [L9101] i = -1 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, dev={0:0}, dev={0:0}, err=-12, i=-1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9108] CALL, EXPR cpumask_next(i, cpu_possible_mask) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6164] unsigned long tmp ; VAL [={0:0}, \old(n)=18446744073709551615, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n=18446744073709551615, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, srcp={42949672985:42949672954}, srcp={42949672985:42949672954}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6166] COND FALSE !(n != -1) VAL [={0:0}, \old(n)=18446744073709551615, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n=18446744073709551615, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, srcp={42949672985:42949672954}, srcp={42949672985:42949672954}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6170-L6171] CALL, EXPR find_next_bit((unsigned long const *)(& srcp->bits), (unsigned long )nr_cpu_ids, (unsigned long )(n + 1)) [L11417] return __VERIFIER_nondet_ulong(); [L6170-L6171] RET, EXPR find_next_bit((unsigned long const *)(& srcp->bits), (unsigned long )nr_cpu_ids, (unsigned long )(n + 1)) [L6170-L6171] tmp = find_next_bit((unsigned long const *)(& srcp->bits), (unsigned long )nr_cpu_ids, (unsigned long )(n + 1)) [L6172] return ((unsigned int )tmp); VAL [={0:0}, \old(n)=18446744073709551615, \result=4294967421, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n=18446744073709551615, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, srcp={42949672985:42949672954}, srcp={42949672985:42949672954}, tmp=4294967421, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9108] RET, EXPR cpumask_next(i, cpu_possible_mask) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, cpumask_next(i, cpu_possible_mask)=4294967421, dev={0:0}, dev={0:0}, err=-12, i=-1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9108] tmp___2 = cpumask_next(i, cpu_possible_mask) [L9109] i = (int )tmp___2 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, err=-12, i=125, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, tmp___2=125, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9110] COND FALSE !(i < nr_cpu_ids) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, err=-12, i=125, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, tmp___2=125, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9116] np->stats = pcpu_stats [L9117] EXPR np->stats VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, err=-12, i=125, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, np->stats={-4096:0}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, tmp___2=125, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9117] COND FALSE !((unsigned long )np->stats == (unsigned long )((struct netfront_stats *)0)) [L9121] netdev->netdev_ops = & xennet_netdev_ops [L9122] netdev->features = 17180131330ULL [L9123] netdev->hw_features = 1114129ULL [L9124] EXPR netdev->features [L9124] EXPR netdev->hw_features [L9124] netdev->features = netdev->features | netdev->hw_features [L9125] netdev->ethtool_ops = & xennet_ethtool_ops [L9126] netdev->dev.parent = & dev->dev [L9127] CALL netif_set_gso_max_size(netdev, 65231U) [L7241] dev->gso_max_size = size VAL [={0:0}, \old(size)=65231, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={122:0}, dev={122:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, size=65231, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9127] RET netif_set_gso_max_size(netdev, 65231U) [L9128] np->netdev = netdev VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, err=-12, i=125, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, tmp___2=125, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9129] FCALL netif_carrier_off(netdev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, err=-12, i=125, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, tmp___2=125, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9130] return (netdev); VAL [={0:0}, \result={122:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, err=-12, i=125, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={122:3264}, nr_cpu_ids=-6, pcpu_stats={-4096:0}, ref_cnt=0, tmp___0={122:3264}, tmp___1={-4096:0}, tmp___2=125, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9146] RET, EXPR xennet_create_dev(dev) [L9146] netdev = xennet_create_dev(dev) [L9147] CALL, EXPR IS_ERR((void const *)netdev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={122:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6295] long tmp ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={122:0}, ptr={122:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \result=0, __this_module={42949672972:42949672951}, c=0, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={122:0}, ptr={122:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6297] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6298] return (tmp != 0L); VAL [={0:0}, \result=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ptr={122:0}, ptr={122:0}, ref_cnt=0, tmp=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9147] RET, EXPR IS_ERR((void const *)netdev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, IS_ERR((void const *)netdev)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9147] tmp___0 = IS_ERR((void const *)netdev) [L9148] COND FALSE !((int )tmp___0) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9155] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={122:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7015] return ((void *)dev + 3264U); VAL [={0:0}, \result={122:3264}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={122:0}, dev={122:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9155] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev_priv((struct net_device const *)netdev)={122:3264}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9155] tmp___1 = netdev_priv((struct net_device const *)netdev) [L9156] info = (struct netfront_info *)tmp___1 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, info={122:3264}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp___0=0, tmp___1={122:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9157] CALL dev_set_drvdata(& dev->dev, (void *)info) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, data={122:3264}, dev={0:60}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6572] dev->driver_data = data VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, data={122:3264}, data={122:3264}, dev={0:60}, dev={0:60}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9157] RET dev_set_drvdata(& dev->dev, (void *)info) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, info={122:3264}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp___0=0, tmp___1={122:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9158] EXPR info->netdev [L9158] CALL, EXPR ldv_register_netdev_38(info->netdev) [L11171] ldv_func_ret_type___3 ldv_func_res ; [L11172] int tmp ; [L11174] CALL, EXPR register_netdev(dev) [L11545] return __VERIFIER_nondet_int(); [L11174] RET, EXPR register_netdev(dev) [L11174] tmp = register_netdev(dev) [L11175] ldv_func_res = tmp [L11176] ldv_state_variable_4 = 1 [L11177] CALL ldv_net_device_ops_4() [L10471] void *tmp ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10473] CALL, EXPR ldv_zalloc(3264UL) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=3264, \result={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, size=3264, tmp___0=1, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10473] RET, EXPR ldv_zalloc(3264UL) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10473] tmp = ldv_zalloc(3264UL) [L10474] xennet_netdev_ops_group1 = (struct net_device *)tmp VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11177] RET ldv_net_device_ops_4() [L11178] return (ldv_func_res); VAL [={0:0}, \result=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={122:0}, dev={122:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9158] RET, EXPR ldv_register_netdev_38(info->netdev) [L9158] err = ldv_register_netdev_38(info->netdev) [L9159] COND FALSE !(err != 0) [L9164] EXPR info->netdev [L9164] CALL, EXPR xennet_sysfs_addif(info->netdev) [L10320] int i ; [L10321] int err ; [L10323] i = 0 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10333] COND TRUE (unsigned int )i <= 2U VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10326] CALL, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L11391] return __VERIFIER_nondet_int(); [L10326] RET, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10326] err = device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10327] COND FALSE !(err != 0) [L10331] i = i + 1 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, err=0, i=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10333] COND TRUE (unsigned int )i <= 2U VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, err=0, i=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10326] CALL, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L11391] return __VERIFIER_nondet_int(); [L10326] RET, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10326] err = device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10327] COND FALSE !(err != 0) [L10331] i = i + 1 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, err=0, i=2, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10333] COND TRUE (unsigned int )i <= 2U VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, err=0, i=2, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10326] CALL, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L11391] return __VERIFIER_nondet_int(); [L10326] RET, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10326] err = device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10327] COND FALSE !(err != 0) [L10331] i = i + 1 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, err=0, i=3, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10333] COND FALSE !((unsigned int )i <= 2U) [L10337] return (0); VAL [={0:0}, \result=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, err=0, i=3, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L9164] RET, EXPR xennet_sysfs_addif(info->netdev) [L9164] err = xennet_sysfs_addif(info->netdev) [L9165] COND FALSE !(err != 0) [L9171] return (0); VAL [={0:0}, \result=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, err=0, id={0:0}, id={0:0}, info={122:3264}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={122:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=0, tmp___0=0, tmp___1={122:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10889] RET, EXPR netfront_probe(netfront_driver_group0, (struct xenbus_device_id const *)ldvarg15) [L10889] ldv_retval_4 = netfront_probe(netfront_driver_group0, (struct xenbus_device_id const *)ldvarg15) [L10890] COND TRUE ldv_retval_4 == 0 [L10891] ldv_state_variable_2 = 2 [L10892] ref_cnt = ref_cnt + 1 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=1, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=4, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10613] tmp___11 = __VERIFIER_nondet_int() [L10615] case 0: VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=1, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10616] COND TRUE ldv_state_variable_4 != 0 [L10617] tmp___12 = __VERIFIER_nondet_int() [L10619] case 0: [L10626] case 1: [L10643] case 2: [L10660] case 3: [L10677] case 4: [L10694] case 5: [L10706] case 6: [L10716] case 7: [L10724] case 8: [L10731] case 9: [L10748] case 10: [L10765] case 11: [L10782] case 12: VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=1, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___12=12, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10783] COND TRUE ldv_state_variable_4 == 1 [L10784] CALL, EXPR ldv_ndo_init_4() [L11478] return __VERIFIER_nondet_int(); [L10784] RET, EXPR ldv_ndo_init_4() [L10784] ldv_retval_0 = ldv_ndo_init_4() [L10785] COND TRUE ldv_retval_0 == 0 [L10786] ldv_state_variable_4 = 2 [L10787] ref_cnt = ref_cnt + 1 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___12=12, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10613] tmp___11 = __VERIFIER_nondet_int() [L10615] case 0: VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___12=12, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10616] COND TRUE ldv_state_variable_4 != 0 [L10617] tmp___12 = __VERIFIER_nondet_int() [L10619] case 0: [L10626] case 1: [L10643] case 2: [L10660] case 3: [L10677] case 4: [L10694] case 5: [L10706] case 6: VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=17, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=-4, ldvarg14={252:0}, ldvarg15={0:0}, ldvarg2={253:0}, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={251:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___12=6, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-7, tmp___5={0:0}, tmp___6=-4, tmp___7=17, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10707] COND TRUE ldv_state_variable_4 == 2 [L10708] CALL xennet_open(xennet_netdev_ops_group1) [L7588] struct netfront_info *np ; [L7589] void *tmp ; [L7590] unsigned int num_queues ; [L7591] unsigned int i ; [L7592] struct netfront_queue *queue ; [L7593] bool tmp___0 ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7595] CALL, EXPR netdev_priv((struct net_device const *)dev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7015] return ((void *)dev + 3264U); VAL [={0:0}, \result={0:3264}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7595] RET, EXPR netdev_priv((struct net_device const *)dev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev_priv((struct net_device const *)dev)={0:3264}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7595] tmp = netdev_priv((struct net_device const *)dev) [L7596] np = (struct netfront_info *)tmp [L7597] EXPR dev->real_num_tx_queues [L7597] num_queues = dev->real_num_tx_queues [L7598] i = 0U [L7599] queue = (struct netfront_queue *)0 [L7600] i = 0U VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={0:3264}, nr_cpu_ids=-6, num_queues=1, queue={0:0}, ref_cnt=2, tmp={0:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7619] COND TRUE i < num_queues VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={0:3264}, nr_cpu_ids=-6, num_queues=1, queue={0:0}, ref_cnt=2, tmp={0:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7603] EXPR np->queues [L7603] queue = np->queues + (unsigned long )i [L7604] CALL napi_enable(& queue->napi) [L6988] int tmp ; [L6989] long tmp___0 ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={42949672986:-5583}, n={42949672986:-5583}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6991] CALL, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& n->state)) VAL [={0:0}, \old(nr)=0, __this_module={42949672972:42949672951}, addr={42949672986:-5567}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6103] EXPR addr + (unsigned long )(nr >> 6) [L6103] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L6991] RET, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& n->state)) VAL [={0:0}, __this_module={42949672972:42949672951}, constant_test_bit(0L, (unsigned long const volatile *)(& n->state))=-8, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={42949672986:-5583}, n={42949672986:-5583}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6991] tmp = constant_test_bit(0L, (unsigned long const volatile *)(& n->state)) [L6992] CALL, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \result=0, __this_module={42949672972:42949672951}, c=0, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6992] RET, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, ldv__builtin_expect(tmp == 0, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={42949672986:-5583}, n={42949672986:-5583}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, tmp=-8, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6992] tmp___0 = ldv__builtin_expect(tmp == 0, 0L) [L6993] COND FALSE !(tmp___0 != 0L) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={42949672986:-5583}, n={42949672986:-5583}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, tmp=-8, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7001] FCALL clear_bit(0L, (unsigned long volatile *)(& n->state)) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={42949672986:-5583}, n={42949672986:-5583}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, tmp=-8, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7604] RET napi_enable(& queue->napi) [L7605] CALL spin_lock_bh(& queue->rx_lock) VAL [={0:0}, \old(ldv_spin)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10974] CALL ldv_spin_lock() VAL [={0:0}, \old(ldv_spin)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11262] ldv_spin = 1 VAL [={0:0}, \old(ldv_spin)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10974] RET ldv_spin_lock() VAL [={0:0}, \old(ldv_spin)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, lock={42949672986:-125}, lock={42949672986:-125}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L10975] CALL ldv_spin_lock_bh_2(lock) [L6347] FCALL _raw_spin_lock_bh(& lock->ldv_6347.rlock) [L10975] RET ldv_spin_lock_bh_2(lock) [L7605] RET spin_lock_bh(& queue->rx_lock) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={0:3264}, nr_cpu_ids=-6, num_queues=1, queue={42949672986:-5617}, ref_cnt=2, tmp={0:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7606] CALL, EXPR netif_carrier_ok((struct net_device const *)dev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7146] int tmp ; VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7148] CALL, EXPR constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) VAL [={0:0}, \old(nr)=2, __this_module={42949672972:42949672951}, addr={0:68}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6103] EXPR addr + (unsigned long )(nr >> 6) [L6103] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L7148] RET, EXPR constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) VAL [={0:0}, __this_module={42949672972:42949672951}, constant_test_bit(2L, (unsigned long const volatile *)(& dev->state))=0, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7148] tmp = constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) [L7149] return (tmp == 0); VAL [={0:0}, \result=1, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, tmp=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7606] RET, EXPR netif_carrier_ok((struct net_device const *)dev) VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, netif_carrier_ok((struct net_device const *)dev)=1, np={0:3264}, nr_cpu_ids=-6, num_queues=1, queue={42949672986:-5617}, ref_cnt=2, tmp={0:3264}, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7606] tmp___0 = netif_carrier_ok((struct net_device const *)dev) [L7607] COND TRUE (int )tmp___0 VAL [={0:0}, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, np={0:3264}, nr_cpu_ids=-6, num_queues=1, queue={42949672986:-5617}, ref_cnt=2, tmp={0:3264}, tmp___0=1, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7608] CALL xennet_alloc_rx_buffers(queue) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7431] unsigned short id ; [L7432] struct sk_buff *skb ; [L7433] struct page *page ; [L7434] int i ; [L7435] int batch_target ; [L7436] int notify ; [L7437] RING_IDX req_prod ; [L7438] grant_ref_t ref ; [L7439] unsigned long pfn ; [L7440] void *vaddr ; [L7441] struct xen_netif_rx_request *req ; [L7442] bool tmp ; [L7443] int tmp___0 ; [L7444] long tmp___1 ; [L7445] __u32 tmp___2 ; [L7446] long tmp___3 ; [L7447] unsigned int tmp___4 ; [L7448] int tmp___5 ; [L7449] long tmp___6 ; [L7450] int tmp___7 ; [L7451] long tmp___8 ; [L7452] unsigned char *tmp___9 ; [L7453] struct page *tmp___10 ; [L7454] unsigned char *tmp___11 ; [L7455] struct page *tmp___12 ; [L7456] unsigned long tmp___13 ; [L7457] RING_IDX __old ; [L7458] RING_IDX __new ; [L7460] EXPR queue->rx.req_prod_pvt [L7460] req_prod = queue->rx.req_prod_pvt [L7461] EXPR queue->info [L7461] EXPR (queue->info)->netdev VAL [={0:0}, (queue->info)->netdev={42949672966:-68}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, queue={42949672986:-5617}, queue={42949672986:-5617}, queue->info={42949672976:126}, ref_cnt=2, req_prod=4294967286, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7461] CALL, EXPR netif_carrier_ok((struct net_device const *)(queue->info)->netdev) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={42949672966:-68}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7146] int tmp ; VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={42949672966:-68}, dev={42949672966:-68}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7148] CALL, EXPR constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, \old(nr)=2, __this_module={42949672972:42949672951}, addr={42949672966:0}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6103] EXPR addr + (unsigned long )(nr >> 6) [L6103] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L7148] RET, EXPR constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, constant_test_bit(2L, (unsigned long const volatile *)(& dev->state))=0, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={42949672966:-68}, dev={42949672966:-68}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7148] tmp = constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) [L7149] return (tmp == 0); VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, \result=1, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, dev={42949672966:-68}, dev={42949672966:-68}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, tmp=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7461] RET, EXPR netif_carrier_ok((struct net_device const *)(queue->info)->netdev) VAL [={0:0}, (queue->info)->netdev={42949672966:-68}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, netif_carrier_ok((struct net_device const *)(queue->info)->netdev)=1, nr_cpu_ids=-6, queue={42949672986:-5617}, queue={42949672986:-5617}, queue->info={42949672976:126}, ref_cnt=2, req_prod=4294967286, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7461] tmp = netif_carrier_ok((struct net_device const *)(queue->info)->netdev) [L7462] COND TRUE \read(tmp) [L7463] tmp___0 = 0 VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, queue={42949672986:-5617}, queue={42949672986:-5617}, ref_cnt=2, req_prod=4294967286, tmp=1, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7467] CALL, EXPR ldv__builtin_expect((long )tmp___0, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, \result=0, __this_module={42949672972:42949672951}, c=0, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7467] RET, EXPR ldv__builtin_expect((long )tmp___0, 0L) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, ldv__builtin_expect((long )tmp___0, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, queue={42949672986:-5617}, queue={42949672986:-5617}, ref_cnt=2, req_prod=4294967286, tmp=1, tmp___0=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7467] tmp___1 = ldv__builtin_expect((long )tmp___0, 0L) [L7468] COND FALSE !(tmp___1 != 0L) [L7472] EXPR queue->rx_target [L7472] EXPR queue->rx.rsp_cons [L7472] batch_target = (int )(queue->rx_target + (queue->rx.rsp_cons - req_prod)) [L7473] CALL, EXPR skb_queue_len((struct sk_buff_head const *)(& queue->rx_batch)) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, list_={42949672986:-21}, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6721] EXPR list_->qlen [L6721] return ((__u32 )list_->qlen); [L7473] RET, EXPR skb_queue_len((struct sk_buff_head const *)(& queue->rx_batch)) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, batch_target=-2, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, queue={42949672986:-5617}, queue={42949672986:-5617}, ref_cnt=2, req_prod=4294967286, skb_queue_len((struct sk_buff_head const *)(& queue->rx_batch))=4294967293, tmp=1, tmp___0=0, tmp___1=0, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7473] tmp___2 = skb_queue_len((struct sk_buff_head const *)(& queue->rx_batch)) [L7474] i = (int )tmp___2 VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, batch_target=-2, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, i=-3, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, queue={42949672986:-5617}, queue={42949672986:-5617}, ref_cnt=2, req_prod=4294967286, tmp=1, tmp___0=0, tmp___1=0, tmp___2=4294967293, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7501] COND TRUE i < batch_target VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, batch_target=-2, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, i=-3, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, queue={42949672986:-5617}, queue={42949672986:-5617}, ref_cnt=2, req_prod=4294967286, tmp=1, tmp___0=0, tmp___1=0, tmp___2=4294967293, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L7477] EXPR queue->info [L7477] EXPR (queue->info)->netdev [L7477] CALL ldv___netdev_alloc_skb_35((queue->info)->netdev, 256U, 544U) [L11143] struct sk_buff *tmp ; VAL [={0:0}, \old(flags)=544, \old(ldv_func_arg2)=256, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, flags=544, ldv_func_arg1={42949672966:-68}, ldv_func_arg1={42949672966:-68}, ldv_func_arg2=256, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11145] CALL ldv_check_alloc_flags(flags) VAL [={0:0}, \old(flags)=544, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11229] COND FALSE !(ldv_spin == 0 || ! (flags & 16U)) VAL [={0:0}, \old(flags)=544, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, flags=544, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L11231] CALL ldv_error() VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] [L6519] reach_error() VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={42949672972:42949672951}, cpu_online_mask={42949672971:42949672952}, cpu_possible_mask={42949672985:42949672954}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={245:0}, netfront_driver_group0={0:0}, netfront_ids={247:0}, nr_cpu_ids=-6, ref_cnt=2, xen_domain_type=1, xennet_attrs={250:0}, xennet_ethtool_ops={246:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=123, xennet_netdev_ops={244:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={243:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 109 procedures, 1588 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 494.9s, OverallIterations: 24, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 442.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 94 mSolverCounterUnknown, 72715 SdHoareTripleChecker+Valid, 415.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68810 mSDsluCounter, 299535 SdHoareTripleChecker+Invalid, 382.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 246406 mSDsCounter, 49359 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140459 IncrementalHoareTripleChecker+Invalid, 189912 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49359 mSolverCounterUnsat, 53129 mSDtfsCounter, 140459 mSolverCounterSat, 1.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6955 GetRequests, 6500 SyntacticMatches, 2 SemanticMatches, 453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3543 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15889occurred in iteration=21, InterpolantAutomatonStates: 320, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 106294 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 8.8s SatisfiabilityAnalysisTime, 19.9s InterpolantComputationTime, 10194 NumberOfCodeBlocks, 10194 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 11371 ConstructedInterpolants, 0 QuantifiedInterpolants, 16954 SizeOfPredicates, 32 NumberOfNonLiveVariables, 34018 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 39 InterpolantComputations, 18 PerfectInterpolantSequences, 14683/14933 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-17 01:18:47,427 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-17 01:18:47,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 01:18:49,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 01:18:49,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 01:18:49,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 01:18:49,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 01:18:49,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 01:18:49,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 01:18:49,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 01:18:49,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 01:18:49,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 01:18:49,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 01:18:49,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 01:18:49,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 01:18:49,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 01:18:49,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 01:18:49,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 01:18:49,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 01:18:49,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 01:18:49,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 01:18:49,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 01:18:49,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 01:18:49,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 01:18:49,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 01:18:49,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 01:18:49,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 01:18:49,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 01:18:49,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 01:18:49,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 01:18:49,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 01:18:49,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 01:18:49,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 01:18:49,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 01:18:49,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 01:18:49,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 01:18:49,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 01:18:49,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 01:18:49,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 01:18:49,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 01:18:49,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 01:18:49,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 01:18:49,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 01:18:49,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-17 01:18:49,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 01:18:49,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 01:18:49,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 01:18:49,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 01:18:49,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 01:18:49,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 01:18:49,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 01:18:49,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 01:18:49,367 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 01:18:49,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 01:18:49,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 01:18:49,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 01:18:49,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 01:18:49,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 01:18:49,369 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-17 01:18:49,369 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-17 01:18:49,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 01:18:49,369 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 01:18:49,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 01:18:49,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 01:18:49,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 01:18:49,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 01:18:49,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:18:49,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 01:18:49,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 01:18:49,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 01:18:49,371 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-17 01:18:49,371 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-17 01:18:49,371 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 01:18:49,372 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 01:18:49,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 01:18:49,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 01:18:49,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-17 01:18:49,373 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 [2021-11-17 01:18:49,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 01:18:49,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 01:18:49,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 01:18:49,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 01:18:49,694 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 01:18:49,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-11-17 01:18:49,752 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e63b6b6f/ffc86c64014a4c2e8a6ba7f91385d8d3/FLAGd5888666d [2021-11-17 01:18:50,563 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 01:18:50,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-11-17 01:18:50,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e63b6b6f/ffc86c64014a4c2e8a6ba7f91385d8d3/FLAGd5888666d [2021-11-17 01:18:50,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e63b6b6f/ffc86c64014a4c2e8a6ba7f91385d8d3 [2021-11-17 01:18:50,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 01:18:50,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 01:18:50,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 01:18:50,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 01:18:50,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 01:18:50,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:18:50" (1/1) ... [2021-11-17 01:18:50,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f630f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:50, skipping insertion in model container [2021-11-17 01:18:50,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:18:50" (1/1) ... [2021-11-17 01:18:50,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 01:18:50,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 01:18:51,470 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2021-11-17 01:18:51,470 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2021-11-17 01:18:51,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2021-11-17 01:18:52,972 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:18:53,017 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 01:18:53,119 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2021-11-17 01:18:53,119 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2021-11-17 01:18:53,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2021-11-17 01:18:53,393 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:18:53,516 INFO L208 MainTranslator]: Completed translation [2021-11-17 01:18:53,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53 WrapperNode [2021-11-17 01:18:53,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 01:18:53,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 01:18:53,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 01:18:53,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 01:18:53,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,751 INFO L137 Inliner]: procedures = 363, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4502 [2021-11-17 01:18:53,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 01:18:53,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 01:18:53,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 01:18:53,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 01:18:53,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 01:18:53,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 01:18:53,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 01:18:53,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 01:18:53,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (1/1) ... [2021-11-17 01:18:53,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:18:53,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:18:53,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 01:18:53,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 01:18:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-17 01:18:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-17 01:18:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-17 01:18:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 01:18:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-17 01:18:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-11-17 01:18:54,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-11-17 01:18:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 01:18:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2021-11-17 01:18:54,007 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2021-11-17 01:18:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 01:18:54,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 01:18:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-17 01:18:54,007 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-17 01:18:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-17 01:18:54,008 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-17 01:18:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2021-11-17 01:18:54,008 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2021-11-17 01:18:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-17 01:18:54,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-17 01:18:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-11-17 01:18:54,008 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-11-17 01:18:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 01:18:54,009 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 01:18:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 01:18:54,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 01:18:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 01:18:54,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 01:18:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-17 01:18:54,010 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-17 01:18:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-17 01:18:54,011 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-17 01:18:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-11-17 01:18:54,011 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-11-17 01:18:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-11-17 01:18:54,011 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-11-17 01:18:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2021-11-17 01:18:54,011 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2021-11-17 01:18:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 01:18:54,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 01:18:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 01:18:54,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 01:18:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 01:18:54,013 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 01:18:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-11-17 01:18:54,013 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-11-17 01:18:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 01:18:54,013 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 01:18:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 01:18:54,014 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 01:18:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-11-17 01:18:54,015 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-11-17 01:18:54,015 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 01:18:54,016 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 01:18:54,016 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2021-11-17 01:18:54,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2021-11-17 01:18:54,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-11-17 01:18:54,017 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-11-17 01:18:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-11-17 01:18:54,017 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-11-17 01:18:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2021-11-17 01:18:54,017 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2021-11-17 01:18:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 01:18:54,017 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 01:18:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-11-17 01:18:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-11-17 01:18:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-17 01:18:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-17 01:18:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-11-17 01:18:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-11-17 01:18:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 01:18:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-11-17 01:18:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-11-17 01:18:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-11-17 01:18:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-11-17 01:18:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-11-17 01:18:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-11-17 01:18:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-17 01:18:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-17 01:18:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-11-17 01:18:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-11-17 01:18:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 01:18:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 01:18:54,021 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 01:18:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 01:18:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 01:18:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-17 01:18:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-17 01:18:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-17 01:18:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-11-17 01:18:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-11-17 01:18:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-11-17 01:18:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-11-17 01:18:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 01:18:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 01:18:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-17 01:18:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-17 01:18:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-17 01:18:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 01:18:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-17 01:18:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-17 01:18:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-17 01:18:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 01:18:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2021-11-17 01:18:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2021-11-17 01:18:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-17 01:18:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-17 01:18:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-11-17 01:18:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-11-17 01:18:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-17 01:18:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-17 01:18:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-11-17 01:18:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-11-17 01:18:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-11-17 01:18:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-11-17 01:18:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-11-17 01:18:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-11-17 01:18:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 01:18:54,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 01:18:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 01:18:54,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 01:18:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 01:18:54,037 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 01:18:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-17 01:18:54,037 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-17 01:18:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-11-17 01:18:54,038 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-11-17 01:18:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 01:18:54,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 01:18:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-17 01:18:54,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-17 01:18:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-11-17 01:18:54,038 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-11-17 01:18:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-17 01:18:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-17 01:18:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-17 01:18:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-17 01:18:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 01:18:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 01:18:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-11-17 01:18:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-11-17 01:18:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-11-17 01:18:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-11-17 01:18:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2021-11-17 01:18:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2021-11-17 01:18:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-11-17 01:18:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-11-17 01:18:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-17 01:18:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-17 01:18:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 01:18:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 01:18:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 01:18:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 01:18:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-17 01:18:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-17 01:18:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 01:18:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 01:18:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2021-11-17 01:18:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2021-11-17 01:18:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-11-17 01:18:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-11-17 01:18:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2021-11-17 01:18:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2021-11-17 01:18:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 01:18:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 01:18:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 01:18:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 01:18:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2021-11-17 01:18:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2021-11-17 01:18:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 01:18:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 01:18:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-17 01:18:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-17 01:18:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-11-17 01:18:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-11-17 01:18:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-17 01:18:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-17 01:18:54,045 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-17 01:18:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-17 01:18:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-17 01:18:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-17 01:18:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 01:18:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 01:18:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 01:18:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 01:18:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2021-11-17 01:18:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2021-11-17 01:18:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-17 01:18:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-17 01:18:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2021-11-17 01:18:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2021-11-17 01:18:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 01:18:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 01:18:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 01:18:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 01:18:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-17 01:18:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-17 01:18:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-17 01:18:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-17 01:18:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 01:18:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-17 01:18:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-17 01:18:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-11-17 01:18:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-11-17 01:18:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-17 01:18:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-17 01:18:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-17 01:18:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 01:18:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 01:18:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-17 01:18:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-17 01:18:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-17 01:18:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-17 01:18:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-17 01:18:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-17 01:18:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 01:18:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 01:18:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-17 01:18:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-17 01:18:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-11-17 01:18:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-11-17 01:18:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 01:18:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 01:18:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2021-11-17 01:18:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2021-11-17 01:18:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-17 01:18:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-17 01:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 01:18:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 01:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-17 01:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-17 01:18:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-17 01:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-17 01:18:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-17 01:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-11-17 01:18:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-11-17 01:18:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2021-11-17 01:18:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2021-11-17 01:18:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 01:18:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 01:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-11-17 01:18:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-11-17 01:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 01:18:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 01:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 01:18:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 01:18:54,823 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 01:18:54,828 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 01:18:57,378 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 01:19:11,894 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 01:19:11,916 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 01:19:11,917 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 01:19:11,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:19:11 BoogieIcfgContainer [2021-11-17 01:19:11,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 01:19:11,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 01:19:11,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 01:19:11,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 01:19:11,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 01:18:50" (1/3) ... [2021-11-17 01:19:11,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28672f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:19:11, skipping insertion in model container [2021-11-17 01:19:11,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:18:53" (2/3) ... [2021-11-17 01:19:11,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28672f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:19:11, skipping insertion in model container [2021-11-17 01:19:11,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:19:11" (3/3) ... [2021-11-17 01:19:11,927 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-11-17 01:19:11,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 01:19:11,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 01:19:11,990 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 01:19:12,000 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 01:19:12,000 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 01:19:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 1587 states, 1111 states have (on average 1.297029702970297) internal successors, (1441), 1141 states have internal predecessors, (1441), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2021-11-17 01:19:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-17 01:19:12,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:12,076 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:12,077 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:12,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1077420318, now seen corresponding path program 1 times [2021-11-17 01:19:12,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:12,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099965293] [2021-11-17 01:19:12,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:12,097 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:12,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:12,103 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:12,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-17 01:19:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:13,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 01:19:13,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-17 01:19:13,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-11-17 01:19:14,068 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:14,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099965293] [2021-11-17 01:19:14,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099965293] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-17 01:19:14,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:19:14,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-11-17 01:19:14,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230693532] [2021-11-17 01:19:14,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:19:14,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 01:19:14,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:14,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 01:19:14,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:19:14,100 INFO L87 Difference]: Start difference. First operand has 1587 states, 1111 states have (on average 1.297029702970297) internal successors, (1441), 1141 states have internal predecessors, (1441), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 01:19:14,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:14,346 INFO L93 Difference]: Finished difference Result 3172 states and 4379 transitions. [2021-11-17 01:19:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 01:19:14,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2021-11-17 01:19:14,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:14,368 INFO L225 Difference]: With dead ends: 3172 [2021-11-17 01:19:14,368 INFO L226 Difference]: Without dead ends: 1560 [2021-11-17 01:19:14,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:19:14,382 INFO L933 BasicCegarLoop]: 2164 mSDtfsCounter, 2 mSDsluCounter, 4322 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6486 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:14,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6486 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:19:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2021-11-17 01:19:14,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1560. [2021-11-17 01:19:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1091 states have (on average 1.2832263978001832) internal successors, (1400), 1114 states have internal predecessors, (1400), 362 states have call successors, (362), 107 states have call predecessors, (362), 106 states have return successors, (361), 359 states have call predecessors, (361), 361 states have call successors, (361) [2021-11-17 01:19:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2123 transitions. [2021-11-17 01:19:14,549 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2123 transitions. Word has length 162 [2021-11-17 01:19:14,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:14,551 INFO L470 AbstractCegarLoop]: Abstraction has 1560 states and 2123 transitions. [2021-11-17 01:19:14,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 01:19:14,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2123 transitions. [2021-11-17 01:19:14,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-17 01:19:14,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:14,562 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:14,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-17 01:19:14,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:14,784 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:14,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash -9076266, now seen corresponding path program 1 times [2021-11-17 01:19:14,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:14,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854075130] [2021-11-17 01:19:14,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:14,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:14,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:14,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:14,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-17 01:19:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:15,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 1275 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 01:19:15,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-11-17 01:19:16,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-17 01:19:16,784 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:16,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854075130] [2021-11-17 01:19:16,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854075130] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:19:16,784 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:19:16,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-17 01:19:16,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727590494] [2021-11-17 01:19:16,785 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:19:16,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 01:19:16,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:16,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 01:19:16,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:19:16,788 INFO L87 Difference]: Start difference. First operand 1560 states and 2123 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 01:19:17,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:17,342 INFO L93 Difference]: Finished difference Result 3109 states and 4238 transitions. [2021-11-17 01:19:17,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 01:19:17,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 165 [2021-11-17 01:19:17,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:17,359 INFO L225 Difference]: With dead ends: 3109 [2021-11-17 01:19:17,359 INFO L226 Difference]: Without dead ends: 1569 [2021-11-17 01:19:17,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:19:17,373 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 9 mSDsluCounter, 10568 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12686 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:17,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 12686 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 01:19:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2021-11-17 01:19:17,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1569. [2021-11-17 01:19:17,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1099 states have (on average 1.283894449499545) internal successors, (1411), 1122 states have internal predecessors, (1411), 362 states have call successors, (362), 108 states have call predecessors, (362), 107 states have return successors, (361), 359 states have call predecessors, (361), 361 states have call successors, (361) [2021-11-17 01:19:17,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2134 transitions. [2021-11-17 01:19:17,426 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2134 transitions. Word has length 165 [2021-11-17 01:19:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:17,427 INFO L470 AbstractCegarLoop]: Abstraction has 1569 states and 2134 transitions. [2021-11-17 01:19:17,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 01:19:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2134 transitions. [2021-11-17 01:19:17,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-17 01:19:17,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:17,432 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:17,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:17,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:17,656 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:17,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1648188706, now seen corresponding path program 2 times [2021-11-17 01:19:17,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:17,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927327704] [2021-11-17 01:19:17,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 01:19:17,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:17,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:17,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:17,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-17 01:19:18,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-17 01:19:18,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 01:19:18,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 01:19:18,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:18,671 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-11-17 01:19:18,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-11-17 01:19:19,019 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:19,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927327704] [2021-11-17 01:19:19,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927327704] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:19:19,020 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:19:19,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-17 01:19:19,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508483945] [2021-11-17 01:19:19,020 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:19:19,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 01:19:19,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:19,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 01:19:19,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:19:19,022 INFO L87 Difference]: Start difference. First operand 1569 states and 2134 transitions. Second operand has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2021-11-17 01:19:19,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:19,206 INFO L93 Difference]: Finished difference Result 1618 states and 2203 transitions. [2021-11-17 01:19:19,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 01:19:19,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 172 [2021-11-17 01:19:19,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:19,221 INFO L225 Difference]: With dead ends: 1618 [2021-11-17 01:19:19,221 INFO L226 Difference]: Without dead ends: 1615 [2021-11-17 01:19:19,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-17 01:19:19,225 INFO L933 BasicCegarLoop]: 2185 mSDtfsCounter, 64 mSDsluCounter, 12926 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 15111 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:19,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 15111 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:19:19,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2021-11-17 01:19:19,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1573. [2021-11-17 01:19:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1102 states have (on average 1.2831215970961887) internal successors, (1414), 1125 states have internal predecessors, (1414), 362 states have call successors, (362), 109 states have call predecessors, (362), 108 states have return successors, (361), 359 states have call predecessors, (361), 361 states have call successors, (361) [2021-11-17 01:19:19,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2137 transitions. [2021-11-17 01:19:19,301 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2137 transitions. Word has length 172 [2021-11-17 01:19:19,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:19,303 INFO L470 AbstractCegarLoop]: Abstraction has 1573 states and 2137 transitions. [2021-11-17 01:19:19,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2021-11-17 01:19:19,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2137 transitions. [2021-11-17 01:19:19,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-17 01:19:19,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:19,308 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:19,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:19,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:19,527 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash -296703398, now seen corresponding path program 1 times [2021-11-17 01:19:19,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:19,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704733589] [2021-11-17 01:19:19,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:19,531 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:19,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:19,532 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:19,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-17 01:19:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:20,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1403 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 01:19:20,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 46 proven. 10 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-11-17 01:19:20,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:21,683 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-17 01:19:21,683 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:21,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704733589] [2021-11-17 01:19:21,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704733589] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:19:21,683 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:19:21,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-11-17 01:19:21,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734866520] [2021-11-17 01:19:21,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:19:21,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 01:19:21,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:21,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 01:19:21,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-17 01:19:21,685 INFO L87 Difference]: Start difference. First operand 1573 states and 2137 transitions. Second operand has 14 states, 14 states have (on average 8.142857142857142) internal successors, (114), 14 states have internal predecessors, (114), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 01:19:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:22,864 INFO L93 Difference]: Finished difference Result 3147 states and 4286 transitions. [2021-11-17 01:19:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-17 01:19:22,866 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.142857142857142) internal successors, (114), 14 states have internal predecessors, (114), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 164 [2021-11-17 01:19:22,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:22,876 INFO L225 Difference]: With dead ends: 3147 [2021-11-17 01:19:22,876 INFO L226 Difference]: Without dead ends: 1592 [2021-11-17 01:19:22,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2021-11-17 01:19:22,883 INFO L933 BasicCegarLoop]: 2120 mSDtfsCounter, 29 mSDsluCounter, 12697 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 14817 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:22,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 14817 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-17 01:19:22,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2021-11-17 01:19:22,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1588. [2021-11-17 01:19:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1116 states have (on average 1.2840501792114696) internal successors, (1433), 1139 states have internal predecessors, (1433), 362 states have call successors, (362), 110 states have call predecessors, (362), 109 states have return successors, (361), 359 states have call predecessors, (361), 361 states have call successors, (361) [2021-11-17 01:19:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2156 transitions. [2021-11-17 01:19:22,935 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2156 transitions. Word has length 164 [2021-11-17 01:19:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:22,935 INFO L470 AbstractCegarLoop]: Abstraction has 1588 states and 2156 transitions. [2021-11-17 01:19:22,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.142857142857142) internal successors, (114), 14 states have internal predecessors, (114), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 01:19:22,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2156 transitions. [2021-11-17 01:19:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-17 01:19:22,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:22,941 INFO L514 BasicCegarLoop]: trace histogram [18, 9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:22,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:23,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:23,155 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:23,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:23,156 INFO L85 PathProgramCache]: Analyzing trace with hash 756859660, now seen corresponding path program 1 times [2021-11-17 01:19:23,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:23,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544337873] [2021-11-17 01:19:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:23,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:23,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:23,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:23,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-17 01:19:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:24,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 01:19:24,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-11-17 01:19:24,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-11-17 01:19:25,317 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:25,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544337873] [2021-11-17 01:19:25,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544337873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:19:25,317 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:19:25,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-17 01:19:25,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802992085] [2021-11-17 01:19:25,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:19:25,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 01:19:25,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:25,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 01:19:25,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 01:19:25,318 INFO L87 Difference]: Start difference. First operand 1588 states and 2156 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 01:19:25,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:25,690 INFO L93 Difference]: Finished difference Result 3136 states and 4256 transitions. [2021-11-17 01:19:25,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 01:19:25,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 173 [2021-11-17 01:19:25,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:25,700 INFO L225 Difference]: With dead ends: 3136 [2021-11-17 01:19:25,700 INFO L226 Difference]: Without dead ends: 1588 [2021-11-17 01:19:25,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-11-17 01:19:25,706 INFO L933 BasicCegarLoop]: 2116 mSDtfsCounter, 18 mSDsluCounter, 8458 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10574 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:25,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 10574 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 01:19:25,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2021-11-17 01:19:25,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1588. [2021-11-17 01:19:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1116 states have (on average 1.2777777777777777) internal successors, (1426), 1139 states have internal predecessors, (1426), 362 states have call successors, (362), 110 states have call predecessors, (362), 109 states have return successors, (361), 359 states have call predecessors, (361), 361 states have call successors, (361) [2021-11-17 01:19:25,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2149 transitions. [2021-11-17 01:19:25,751 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2149 transitions. Word has length 173 [2021-11-17 01:19:25,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:25,751 INFO L470 AbstractCegarLoop]: Abstraction has 1588 states and 2149 transitions. [2021-11-17 01:19:25,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 01:19:25,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2149 transitions. [2021-11-17 01:19:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-17 01:19:25,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:25,756 INFO L514 BasicCegarLoop]: trace histogram [20, 9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:25,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:25,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:25,972 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:25,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:25,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1325686860, now seen corresponding path program 2 times [2021-11-17 01:19:25,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:25,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863726232] [2021-11-17 01:19:25,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 01:19:25,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:25,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:25,976 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:25,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-17 01:19:26,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-17 01:19:26,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 01:19:26,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:19:26,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:27,051 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2021-11-17 01:19:27,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2021-11-17 01:19:27,391 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:27,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863726232] [2021-11-17 01:19:27,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863726232] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:19:27,391 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:19:27,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-17 01:19:27,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748558714] [2021-11-17 01:19:27,391 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:19:27,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:19:27,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:27,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:19:27,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:19:27,393 INFO L87 Difference]: Start difference. First operand 1588 states and 2149 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 01:19:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:27,673 INFO L93 Difference]: Finished difference Result 4081 states and 5521 transitions. [2021-11-17 01:19:27,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:19:27,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 175 [2021-11-17 01:19:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:27,688 INFO L225 Difference]: With dead ends: 4081 [2021-11-17 01:19:27,688 INFO L226 Difference]: Without dead ends: 2540 [2021-11-17 01:19:27,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:19:27,698 INFO L933 BasicCegarLoop]: 2348 mSDtfsCounter, 1311 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:27,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 4404 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 01:19:27,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2021-11-17 01:19:27,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2537. [2021-11-17 01:19:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 1783 states have (on average 1.2798653954010095) internal successors, (2282), 1820 states have internal predecessors, (2282), 573 states have call successors, (573), 181 states have call predecessors, (573), 180 states have return successors, (572), 569 states have call predecessors, (572), 572 states have call successors, (572) [2021-11-17 01:19:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 3427 transitions. [2021-11-17 01:19:27,799 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 3427 transitions. Word has length 175 [2021-11-17 01:19:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:27,800 INFO L470 AbstractCegarLoop]: Abstraction has 2537 states and 3427 transitions. [2021-11-17 01:19:27,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 01:19:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 3427 transitions. [2021-11-17 01:19:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-17 01:19:27,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:27,809 INFO L514 BasicCegarLoop]: trace histogram [20, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:27,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:28,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:28,023 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:28,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:28,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1244064583, now seen corresponding path program 1 times [2021-11-17 01:19:28,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:28,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6820440] [2021-11-17 01:19:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:28,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:28,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:28,028 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:28,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-17 01:19:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:29,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:19:29,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:29,745 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2021-11-17 01:19:29,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-17 01:19:30,109 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:30,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6820440] [2021-11-17 01:19:30,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6820440] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:19:30,110 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:19:30,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-17 01:19:30,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455549339] [2021-11-17 01:19:30,110 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:19:30,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:19:30,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:30,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:19:30,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:19:30,112 INFO L87 Difference]: Start difference. First operand 2537 states and 3427 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 01:19:30,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:30,584 INFO L93 Difference]: Finished difference Result 6133 states and 8242 transitions. [2021-11-17 01:19:30,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:19:30,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 208 [2021-11-17 01:19:30,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:30,605 INFO L225 Difference]: With dead ends: 6133 [2021-11-17 01:19:30,605 INFO L226 Difference]: Without dead ends: 3652 [2021-11-17 01:19:30,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:19:30,617 INFO L933 BasicCegarLoop]: 2520 mSDtfsCounter, 1367 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 4478 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:30,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 4478 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-17 01:19:30,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2021-11-17 01:19:30,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3644. [2021-11-17 01:19:30,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 2580 states have (on average 1.2794573643410854) internal successors, (3301), 2635 states have internal predecessors, (3301), 788 states have call successors, (788), 277 states have call predecessors, (788), 275 states have return successors, (787), 777 states have call predecessors, (787), 787 states have call successors, (787) [2021-11-17 01:19:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 4876 transitions. [2021-11-17 01:19:30,760 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 4876 transitions. Word has length 208 [2021-11-17 01:19:30,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:30,760 INFO L470 AbstractCegarLoop]: Abstraction has 3644 states and 4876 transitions. [2021-11-17 01:19:30,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 01:19:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 4876 transitions. [2021-11-17 01:19:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-17 01:19:30,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:30,766 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:30,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:30,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:30,980 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:30,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:30,980 INFO L85 PathProgramCache]: Analyzing trace with hash 442073764, now seen corresponding path program 1 times [2021-11-17 01:19:30,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:30,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225251902] [2021-11-17 01:19:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:30,982 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:30,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:30,983 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:30,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-17 01:19:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:32,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 01:19:32,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:32,670 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2021-11-17 01:19:32,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2021-11-17 01:19:33,066 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:33,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225251902] [2021-11-17 01:19:33,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225251902] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:19:33,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:19:33,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-17 01:19:33,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329213344] [2021-11-17 01:19:33,066 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:19:33,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:19:33,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:33,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:19:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:19:33,068 INFO L87 Difference]: Start difference. First operand 3644 states and 4876 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 01:19:35,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:19:37,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:19:41,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:41,360 INFO L93 Difference]: Finished difference Result 10779 states and 14440 transitions. [2021-11-17 01:19:41,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 01:19:41,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 202 [2021-11-17 01:19:41,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:41,405 INFO L225 Difference]: With dead ends: 10779 [2021-11-17 01:19:41,405 INFO L226 Difference]: Without dead ends: 7191 [2021-11-17 01:19:41,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:19:41,423 INFO L933 BasicCegarLoop]: 2730 mSDtfsCounter, 2072 mSDsluCounter, 9592 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 12322 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:41,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2072 Valid, 12322 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 718 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2021-11-17 01:19:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7191 states. [2021-11-17 01:19:41,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7191 to 6135. [2021-11-17 01:19:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6135 states, 4330 states have (on average 1.2771362586605082) internal successors, (5530), 4426 states have internal predecessors, (5530), 1337 states have call successors, (1337), 470 states have call predecessors, (1337), 467 states have return successors, (1336), 1317 states have call predecessors, (1336), 1336 states have call successors, (1336) [2021-11-17 01:19:41,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 8203 transitions. [2021-11-17 01:19:41,661 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 8203 transitions. Word has length 202 [2021-11-17 01:19:41,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:41,661 INFO L470 AbstractCegarLoop]: Abstraction has 6135 states and 8203 transitions. [2021-11-17 01:19:41,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 01:19:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 8203 transitions. [2021-11-17 01:19:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-17 01:19:41,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:41,667 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:41,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:41,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:41,896 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:41,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash -307275902, now seen corresponding path program 1 times [2021-11-17 01:19:41,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:41,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686863985] [2021-11-17 01:19:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:41,898 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:41,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:41,899 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:41,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-17 01:19:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:43,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:19:43,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:43,628 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2021-11-17 01:19:43,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2021-11-17 01:19:44,068 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:44,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686863985] [2021-11-17 01:19:44,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686863985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:19:44,068 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:19:44,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-17 01:19:44,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455534720] [2021-11-17 01:19:44,068 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:19:44,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:19:44,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:44,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:19:44,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:19:44,070 INFO L87 Difference]: Start difference. First operand 6135 states and 8203 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 01:19:46,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:19:46,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:46,501 INFO L93 Difference]: Finished difference Result 16735 states and 22372 transitions. [2021-11-17 01:19:46,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:19:46,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 208 [2021-11-17 01:19:46,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:46,568 INFO L225 Difference]: With dead ends: 16735 [2021-11-17 01:19:46,568 INFO L226 Difference]: Without dead ends: 10668 [2021-11-17 01:19:46,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:19:46,597 INFO L933 BasicCegarLoop]: 2738 mSDtfsCounter, 1980 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 4722 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:46,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1980 Valid, 4722 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 01:19:46,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2021-11-17 01:19:46,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 10627. [2021-11-17 01:19:46,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10627 states, 7510 states have (on average 1.2761651131824234) internal successors, (9584), 7670 states have internal predecessors, (9584), 2293 states have call successors, (2293), 826 states have call predecessors, (2293), 823 states have return successors, (2292), 2271 states have call predecessors, (2292), 2292 states have call successors, (2292) [2021-11-17 01:19:47,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10627 states to 10627 states and 14169 transitions. [2021-11-17 01:19:47,035 INFO L78 Accepts]: Start accepts. Automaton has 10627 states and 14169 transitions. Word has length 208 [2021-11-17 01:19:47,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:47,036 INFO L470 AbstractCegarLoop]: Abstraction has 10627 states and 14169 transitions. [2021-11-17 01:19:47,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 01:19:47,036 INFO L276 IsEmpty]: Start isEmpty. Operand 10627 states and 14169 transitions. [2021-11-17 01:19:47,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 01:19:47,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:47,045 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:47,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:47,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:47,268 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:47,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:47,268 INFO L85 PathProgramCache]: Analyzing trace with hash 844497572, now seen corresponding path program 1 times [2021-11-17 01:19:47,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:47,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984651150] [2021-11-17 01:19:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:47,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:47,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:47,270 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:47,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-17 01:19:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:48,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-17 01:19:48,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-17 01:19:49,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-11-17 01:19:49,521 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:49,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984651150] [2021-11-17 01:19:49,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984651150] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:19:49,521 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:19:49,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 6] imperfect sequences [] total 6 [2021-11-17 01:19:49,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103223103] [2021-11-17 01:19:49,522 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:19:49,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:19:49,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:49,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:19:49,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:19:49,523 INFO L87 Difference]: Start difference. First operand 10627 states and 14169 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 01:19:50,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:19:50,097 INFO L93 Difference]: Finished difference Result 21290 states and 28418 transitions. [2021-11-17 01:19:50,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:19:50,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 207 [2021-11-17 01:19:50,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:19:50,231 INFO L225 Difference]: With dead ends: 21290 [2021-11-17 01:19:50,231 INFO L226 Difference]: Without dead ends: 10731 [2021-11-17 01:19:50,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:19:50,261 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 724 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-17 01:19:50,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 5664 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-17 01:19:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2021-11-17 01:19:50,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10707. [2021-11-17 01:19:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10707 states, 7590 states have (on average 1.2732542819499342) internal successors, (9664), 7750 states have internal predecessors, (9664), 2293 states have call successors, (2293), 826 states have call predecessors, (2293), 823 states have return successors, (2292), 2271 states have call predecessors, (2292), 2292 states have call successors, (2292) [2021-11-17 01:19:50,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10707 states to 10707 states and 14249 transitions. [2021-11-17 01:19:50,599 INFO L78 Accepts]: Start accepts. Automaton has 10707 states and 14249 transitions. Word has length 207 [2021-11-17 01:19:50,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:19:50,599 INFO L470 AbstractCegarLoop]: Abstraction has 10707 states and 14249 transitions. [2021-11-17 01:19:50,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 01:19:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 10707 states and 14249 transitions. [2021-11-17 01:19:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 01:19:50,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:19:50,607 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:19:50,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-17 01:19:50,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:19:50,828 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:19:50,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:19:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash 631078828, now seen corresponding path program 1 times [2021-11-17 01:19:50,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:19:50,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089866061] [2021-11-17 01:19:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:19:50,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:19:50,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:19:50,830 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:19:50,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-17 01:19:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:19:52,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 01:19:52,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:19:52,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-17 01:19:52,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-17 01:19:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-17 01:19:52,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:19:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-11-17 01:19:53,095 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:19:53,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089866061] [2021-11-17 01:19:53,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089866061] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:19:53,096 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:19:53,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-17 01:19:53,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765070207] [2021-11-17 01:19:53,096 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:19:53,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 01:19:53,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:19:53,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 01:19:53,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 01:19:53,097 INFO L87 Difference]: Start difference. First operand 10707 states and 14249 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 01:19:55,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:20:00,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:20:03,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:20:03,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:03,352 INFO L93 Difference]: Finished difference Result 21362 states and 28454 transitions. [2021-11-17 01:20:03,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 01:20:03,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 207 [2021-11-17 01:20:03,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:03,392 INFO L225 Difference]: With dead ends: 21362 [2021-11-17 01:20:03,392 INFO L226 Difference]: Without dead ends: 10723 [2021-11-17 01:20:03,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 01:20:03,423 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 1 mSDsluCounter, 4011 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6129 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:03,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6129 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-11-17 01:20:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2021-11-17 01:20:03,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 10723. [2021-11-17 01:20:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10723 states, 7606 states have (on average 1.2726794635813832) internal successors, (9680), 7766 states have internal predecessors, (9680), 2293 states have call successors, (2293), 826 states have call predecessors, (2293), 823 states have return successors, (2292), 2271 states have call predecessors, (2292), 2292 states have call successors, (2292) [2021-11-17 01:20:03,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10723 states to 10723 states and 14265 transitions. [2021-11-17 01:20:03,847 INFO L78 Accepts]: Start accepts. Automaton has 10723 states and 14265 transitions. Word has length 207 [2021-11-17 01:20:03,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:03,850 INFO L470 AbstractCegarLoop]: Abstraction has 10723 states and 14265 transitions. [2021-11-17 01:20:03,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 01:20:03,850 INFO L276 IsEmpty]: Start isEmpty. Operand 10723 states and 14265 transitions. [2021-11-17 01:20:03,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 01:20:03,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:03,857 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:03,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-17 01:20:04,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:04,072 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:04,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:04,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1214288338, now seen corresponding path program 1 times [2021-11-17 01:20:04,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:04,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105205480] [2021-11-17 01:20:04,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:20:04,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:04,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:04,075 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:04,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-17 01:20:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:20:05,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-17 01:20:05,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2021-11-17 01:20:06,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:20:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2021-11-17 01:20:09,136 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:20:09,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105205480] [2021-11-17 01:20:09,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105205480] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:20:09,136 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:20:09,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 20 [2021-11-17 01:20:09,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795109413] [2021-11-17 01:20:09,137 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:20:09,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-17 01:20:09,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:20:09,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-17 01:20:09,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-11-17 01:20:09,139 INFO L87 Difference]: Start difference. First operand 10723 states and 14265 transitions. Second operand has 20 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 6 states have call successors, (27), 2 states have call predecessors, (27), 8 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-17 01:20:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:14,009 INFO L93 Difference]: Finished difference Result 25124 states and 34306 transitions. [2021-11-17 01:20:14,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 01:20:14,010 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 6 states have call successors, (27), 2 states have call predecessors, (27), 8 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) Word has length 207 [2021-11-17 01:20:14,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:14,056 INFO L225 Difference]: With dead ends: 25124 [2021-11-17 01:20:14,056 INFO L226 Difference]: Without dead ends: 14469 [2021-11-17 01:20:14,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 393 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-11-17 01:20:14,081 INFO L933 BasicCegarLoop]: 2407 mSDtfsCounter, 934 mSDsluCounter, 30290 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 32697 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:14,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1012 Valid, 32697 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-17 01:20:14,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14469 states. [2021-11-17 01:20:14,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14469 to 10779. [2021-11-17 01:20:14,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10779 states, 7646 states have (on average 1.271252942715145) internal successors, (9720), 7806 states have internal predecessors, (9720), 2301 states have call successors, (2301), 826 states have call predecessors, (2301), 831 states have return successors, (2356), 2287 states have call predecessors, (2356), 2300 states have call successors, (2356) [2021-11-17 01:20:14,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10779 states to 10779 states and 14377 transitions. [2021-11-17 01:20:14,480 INFO L78 Accepts]: Start accepts. Automaton has 10779 states and 14377 transitions. Word has length 207 [2021-11-17 01:20:14,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:14,480 INFO L470 AbstractCegarLoop]: Abstraction has 10779 states and 14377 transitions. [2021-11-17 01:20:14,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 6 states have call successors, (27), 2 states have call predecessors, (27), 8 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-17 01:20:14,481 INFO L276 IsEmpty]: Start isEmpty. Operand 10779 states and 14377 transitions. [2021-11-17 01:20:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-17 01:20:14,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:14,487 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:14,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-17 01:20:14,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:14,704 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:14,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1880565386, now seen corresponding path program 1 times [2021-11-17 01:20:14,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:14,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957474079] [2021-11-17 01:20:14,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:20:14,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:14,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:14,707 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:14,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-17 01:20:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:20:16,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:20:16,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-11-17 01:20:16,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:20:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-11-17 01:20:16,792 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:20:16,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957474079] [2021-11-17 01:20:16,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957474079] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:20:16,793 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:20:16,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-17 01:20:16,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876667481] [2021-11-17 01:20:16,793 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:20:16,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 01:20:16,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:20:16,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 01:20:16,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-17 01:20:16,794 INFO L87 Difference]: Start difference. First operand 10779 states and 14377 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 01:20:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:17,694 INFO L93 Difference]: Finished difference Result 25170 states and 34398 transitions. [2021-11-17 01:20:17,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 01:20:17,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 208 [2021-11-17 01:20:17,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:17,741 INFO L225 Difference]: With dead ends: 25170 [2021-11-17 01:20:17,741 INFO L226 Difference]: Without dead ends: 14459 [2021-11-17 01:20:17,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-17 01:20:17,769 INFO L933 BasicCegarLoop]: 2272 mSDtfsCounter, 417 mSDsluCounter, 4421 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 6693 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:17,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 6693 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-17 01:20:17,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14459 states. [2021-11-17 01:20:18,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14459 to 10843. [2021-11-17 01:20:18,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10843 states, 7702 states have (on average 1.2713580888081017) internal successors, (9792), 7862 states have internal predecessors, (9792), 2309 states have call successors, (2309), 826 states have call predecessors, (2309), 831 states have return successors, (2364), 2295 states have call predecessors, (2364), 2308 states have call successors, (2364) [2021-11-17 01:20:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10843 states to 10843 states and 14465 transitions. [2021-11-17 01:20:18,220 INFO L78 Accepts]: Start accepts. Automaton has 10843 states and 14465 transitions. Word has length 208 [2021-11-17 01:20:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:18,220 INFO L470 AbstractCegarLoop]: Abstraction has 10843 states and 14465 transitions. [2021-11-17 01:20:18,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 01:20:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10843 states and 14465 transitions. [2021-11-17 01:20:18,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-17 01:20:18,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:18,227 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:18,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-17 01:20:18,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:18,444 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash -932247141, now seen corresponding path program 1 times [2021-11-17 01:20:18,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:18,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115914149] [2021-11-17 01:20:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:20:18,446 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:18,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:18,448 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:18,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-17 01:20:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:20:20,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-17 01:20:20,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2021-11-17 01:20:21,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:20:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-17 01:20:27,776 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:20:27,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115914149] [2021-11-17 01:20:27,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115914149] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-17 01:20:27,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:20:27,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [20] total 32 [2021-11-17 01:20:27,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040396653] [2021-11-17 01:20:27,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:20:27,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-17 01:20:27,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:20:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-17 01:20:27,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2021-11-17 01:20:27,779 INFO L87 Difference]: Start difference. First operand 10843 states and 14465 transitions. Second operand has 17 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 6 states have call successors, (27), 2 states have call predecessors, (27), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2021-11-17 01:20:32,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:32,619 INFO L93 Difference]: Finished difference Result 21640 states and 28894 transitions. [2021-11-17 01:20:32,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-17 01:20:32,620 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 6 states have call successors, (27), 2 states have call predecessors, (27), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) Word has length 227 [2021-11-17 01:20:32,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:32,652 INFO L225 Difference]: With dead ends: 21640 [2021-11-17 01:20:32,652 INFO L226 Difference]: Without dead ends: 10865 [2021-11-17 01:20:32,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 421 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=139, Invalid=1421, Unknown=0, NotChecked=0, Total=1560 [2021-11-17 01:20:32,679 INFO L933 BasicCegarLoop]: 2081 mSDtfsCounter, 644 mSDsluCounter, 30261 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 32342 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:32,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 32342 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-17 01:20:32,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2021-11-17 01:20:33,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 10759. [2021-11-17 01:20:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10759 states, 7646 states have (on average 1.2722992414334293) internal successors, (9728), 7806 states have internal predecessors, (9728), 2293 states have call successors, (2293), 822 states have call predecessors, (2293), 819 states have return successors, (2292), 2271 states have call predecessors, (2292), 2292 states have call successors, (2292) [2021-11-17 01:20:33,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10759 states to 10759 states and 14313 transitions. [2021-11-17 01:20:33,098 INFO L78 Accepts]: Start accepts. Automaton has 10759 states and 14313 transitions. Word has length 227 [2021-11-17 01:20:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:33,099 INFO L470 AbstractCegarLoop]: Abstraction has 10759 states and 14313 transitions. [2021-11-17 01:20:33,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 6 states have call successors, (27), 2 states have call predecessors, (27), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2021-11-17 01:20:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 10759 states and 14313 transitions. [2021-11-17 01:20:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-17 01:20:33,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:33,107 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:33,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-17 01:20:33,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:33,328 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:33,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:33,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2072965904, now seen corresponding path program 1 times [2021-11-17 01:20:33,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:33,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770109935] [2021-11-17 01:20:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:20:33,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:33,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:33,332 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:33,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-17 01:20:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:20:35,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 01:20:35,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-11-17 01:20:35,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:20:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-11-17 01:20:35,863 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:20:35,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770109935] [2021-11-17 01:20:35,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770109935] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:20:35,864 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:20:35,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-17 01:20:35,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907937144] [2021-11-17 01:20:35,864 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:20:35,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:20:35,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:20:35,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:20:35,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:20:35,866 INFO L87 Difference]: Start difference. First operand 10759 states and 14313 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-11-17 01:20:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:37,190 INFO L93 Difference]: Finished difference Result 22506 states and 30118 transitions. [2021-11-17 01:20:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 01:20:37,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 215 [2021-11-17 01:20:37,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:37,232 INFO L225 Difference]: With dead ends: 22506 [2021-11-17 01:20:37,232 INFO L226 Difference]: Without dead ends: 11815 [2021-11-17 01:20:37,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:20:37,263 INFO L933 BasicCegarLoop]: 2174 mSDtfsCounter, 154 mSDsluCounter, 8432 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 10606 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:37,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 10606 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-17 01:20:37,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11815 states. [2021-11-17 01:20:37,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11815 to 10775. [2021-11-17 01:20:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10775 states, 7662 states have (on average 1.2717306186374315) internal successors, (9744), 7822 states have internal predecessors, (9744), 2293 states have call successors, (2293), 822 states have call predecessors, (2293), 819 states have return successors, (2292), 2271 states have call predecessors, (2292), 2292 states have call successors, (2292) [2021-11-17 01:20:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10775 states to 10775 states and 14329 transitions. [2021-11-17 01:20:37,726 INFO L78 Accepts]: Start accepts. Automaton has 10775 states and 14329 transitions. Word has length 215 [2021-11-17 01:20:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:37,728 INFO L470 AbstractCegarLoop]: Abstraction has 10775 states and 14329 transitions. [2021-11-17 01:20:37,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-11-17 01:20:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 10775 states and 14329 transitions. [2021-11-17 01:20:37,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-17 01:20:37,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:37,738 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:37,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-17 01:20:37,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:37,952 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:37,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:37,952 INFO L85 PathProgramCache]: Analyzing trace with hash -393650472, now seen corresponding path program 1 times [2021-11-17 01:20:37,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:37,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383295283] [2021-11-17 01:20:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:20:37,955 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:37,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:37,956 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:37,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-17 01:20:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:20:39,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:20:39,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-17 01:20:39,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:20:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2021-11-17 01:20:40,227 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:20:40,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383295283] [2021-11-17 01:20:40,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383295283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:20:40,228 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:20:40,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-17 01:20:40,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43276240] [2021-11-17 01:20:40,228 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:20:40,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:20:40,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:20:40,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:20:40,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:20:40,230 INFO L87 Difference]: Start difference. First operand 10775 states and 14329 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 01:20:40,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:40,532 INFO L93 Difference]: Finished difference Result 21498 states and 28622 transitions. [2021-11-17 01:20:40,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:20:40,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 224 [2021-11-17 01:20:40,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:40,564 INFO L225 Difference]: With dead ends: 21498 [2021-11-17 01:20:40,564 INFO L226 Difference]: Without dead ends: 10791 [2021-11-17 01:20:40,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:20:40,587 INFO L933 BasicCegarLoop]: 2115 mSDtfsCounter, 0 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:40,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:20:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10791 states. [2021-11-17 01:20:41,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10791 to 10783. [2021-11-17 01:20:41,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10783 states, 7670 states have (on average 1.2714471968709258) internal successors, (9752), 7830 states have internal predecessors, (9752), 2293 states have call successors, (2293), 822 states have call predecessors, (2293), 819 states have return successors, (2292), 2271 states have call predecessors, (2292), 2292 states have call successors, (2292) [2021-11-17 01:20:41,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10783 states to 10783 states and 14337 transitions. [2021-11-17 01:20:41,060 INFO L78 Accepts]: Start accepts. Automaton has 10783 states and 14337 transitions. Word has length 224 [2021-11-17 01:20:41,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:41,060 INFO L470 AbstractCegarLoop]: Abstraction has 10783 states and 14337 transitions. [2021-11-17 01:20:41,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 01:20:41,061 INFO L276 IsEmpty]: Start isEmpty. Operand 10783 states and 14337 transitions. [2021-11-17 01:20:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-17 01:20:41,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:41,073 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:41,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-17 01:20:41,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:41,296 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:41,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:41,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2040574302, now seen corresponding path program 1 times [2021-11-17 01:20:41,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:41,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313579658] [2021-11-17 01:20:41,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:20:41,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:41,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:41,299 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:41,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-17 01:20:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:20:43,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 01:20:43,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2021-11-17 01:20:43,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:20:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2021-11-17 01:20:43,843 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:20:43,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313579658] [2021-11-17 01:20:43,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313579658] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:20:43,843 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:20:43,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-17 01:20:43,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252181613] [2021-11-17 01:20:43,844 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:20:43,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:20:43,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:20:43,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:20:43,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:20:43,845 INFO L87 Difference]: Start difference. First operand 10783 states and 14337 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 6 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2021-11-17 01:20:45,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:45,790 INFO L93 Difference]: Finished difference Result 23810 states and 32050 transitions. [2021-11-17 01:20:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:20:45,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 6 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 228 [2021-11-17 01:20:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:45,827 INFO L225 Difference]: With dead ends: 23810 [2021-11-17 01:20:45,828 INFO L226 Difference]: Without dead ends: 13095 [2021-11-17 01:20:45,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:20:45,852 INFO L933 BasicCegarLoop]: 2281 mSDtfsCounter, 652 mSDsluCounter, 4294 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 6575 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:45,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 6575 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-17 01:20:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13095 states. [2021-11-17 01:20:46,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13095 to 10927. [2021-11-17 01:20:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10927 states, 7790 states have (on average 1.2744544287548139) internal successors, (9928), 7950 states have internal predecessors, (9928), 2317 states have call successors, (2317), 822 states have call predecessors, (2317), 819 states have return successors, (2316), 2295 states have call predecessors, (2316), 2316 states have call successors, (2316) [2021-11-17 01:20:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10927 states to 10927 states and 14561 transitions. [2021-11-17 01:20:46,293 INFO L78 Accepts]: Start accepts. Automaton has 10927 states and 14561 transitions. Word has length 228 [2021-11-17 01:20:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:46,294 INFO L470 AbstractCegarLoop]: Abstraction has 10927 states and 14561 transitions. [2021-11-17 01:20:46,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 6 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2021-11-17 01:20:46,294 INFO L276 IsEmpty]: Start isEmpty. Operand 10927 states and 14561 transitions. [2021-11-17 01:20:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-17 01:20:46,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:46,305 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:46,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-17 01:20:46,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:46,520 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:46,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1233324640, now seen corresponding path program 1 times [2021-11-17 01:20:46,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:46,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562269612] [2021-11-17 01:20:46,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:20:46,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:46,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:46,523 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:46,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-17 01:20:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:20:48,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 01:20:48,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2021-11-17 01:20:48,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:20:48,968 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2021-11-17 01:20:48,969 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:20:48,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562269612] [2021-11-17 01:20:48,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562269612] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:20:48,969 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:20:48,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-17 01:20:48,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473798808] [2021-11-17 01:20:48,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:20:48,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 01:20:48,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:20:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 01:20:48,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:20:48,971 INFO L87 Difference]: Start difference. First operand 10927 states and 14561 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 6 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2021-11-17 01:20:51,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:51,927 INFO L93 Difference]: Finished difference Result 24450 states and 33006 transitions. [2021-11-17 01:20:51,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 01:20:51,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 6 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 228 [2021-11-17 01:20:51,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:51,981 INFO L225 Difference]: With dead ends: 24450 [2021-11-17 01:20:51,982 INFO L226 Difference]: Without dead ends: 13591 [2021-11-17 01:20:52,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-17 01:20:52,020 INFO L933 BasicCegarLoop]: 2366 mSDtfsCounter, 418 mSDsluCounter, 13081 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 15447 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:52,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 15447 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-17 01:20:52,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13591 states. [2021-11-17 01:20:52,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13591 to 11007. [2021-11-17 01:20:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11007 states, 7862 states have (on average 1.272958534723989) internal successors, (10008), 8022 states have internal predecessors, (10008), 2325 states have call successors, (2325), 822 states have call predecessors, (2325), 819 states have return successors, (2324), 2303 states have call predecessors, (2324), 2324 states have call successors, (2324) [2021-11-17 01:20:52,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11007 states to 11007 states and 14657 transitions. [2021-11-17 01:20:52,572 INFO L78 Accepts]: Start accepts. Automaton has 11007 states and 14657 transitions. Word has length 228 [2021-11-17 01:20:52,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:52,573 INFO L470 AbstractCegarLoop]: Abstraction has 11007 states and 14657 transitions. [2021-11-17 01:20:52,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 6 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2021-11-17 01:20:52,573 INFO L276 IsEmpty]: Start isEmpty. Operand 11007 states and 14657 transitions. [2021-11-17 01:20:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-17 01:20:52,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:52,591 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:52,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-17 01:20:52,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:52,807 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:52,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:52,808 INFO L85 PathProgramCache]: Analyzing trace with hash 206160206, now seen corresponding path program 2 times [2021-11-17 01:20:52,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:52,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125832176] [2021-11-17 01:20:52,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 01:20:52,809 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:52,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:52,810 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:52,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-17 01:20:53,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-17 01:20:53,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 01:20:53,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 01:20:53,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:54,698 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2021-11-17 01:20:54,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:20:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2021-11-17 01:20:55,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:20:55,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125832176] [2021-11-17 01:20:55,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125832176] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:20:55,576 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:20:55,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-17 01:20:55,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387820764] [2021-11-17 01:20:55,577 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:20:55,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:20:55,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:20:55,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:20:55,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:20:55,579 INFO L87 Difference]: Start difference. First operand 11007 states and 14657 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-17 01:20:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:20:55,989 INFO L93 Difference]: Finished difference Result 19733 states and 26298 transitions. [2021-11-17 01:20:55,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:20:55,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 268 [2021-11-17 01:20:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:20:56,053 INFO L225 Difference]: With dead ends: 19733 [2021-11-17 01:20:56,053 INFO L226 Difference]: Without dead ends: 19730 [2021-11-17 01:20:56,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:20:56,066 INFO L933 BasicCegarLoop]: 2529 mSDtfsCounter, 1616 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:20:56,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1616 Valid, 4522 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:20:56,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19730 states. [2021-11-17 01:20:56,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19730 to 19604. [2021-11-17 01:20:56,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19604 states, 14197 states have (on average 1.2820314150876946) internal successors, (18201), 14487 states have internal predecessors, (18201), 3917 states have call successors, (3917), 1494 states have call predecessors, (3917), 1489 states have return successors, (3979), 3861 states have call predecessors, (3979), 3916 states have call successors, (3979) [2021-11-17 01:20:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19604 states to 19604 states and 26097 transitions. [2021-11-17 01:20:56,757 INFO L78 Accepts]: Start accepts. Automaton has 19604 states and 26097 transitions. Word has length 268 [2021-11-17 01:20:56,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:20:56,758 INFO L470 AbstractCegarLoop]: Abstraction has 19604 states and 26097 transitions. [2021-11-17 01:20:56,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-17 01:20:56,758 INFO L276 IsEmpty]: Start isEmpty. Operand 19604 states and 26097 transitions. [2021-11-17 01:20:56,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-17 01:20:56,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:20:56,773 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:20:56,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-11-17 01:20:56,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:20:56,974 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:20:56,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:20:56,974 INFO L85 PathProgramCache]: Analyzing trace with hash -195121195, now seen corresponding path program 1 times [2021-11-17 01:20:56,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:20:56,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738633171] [2021-11-17 01:20:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:20:56,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:20:56,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:20:56,977 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:20:56,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-17 01:20:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:20:58,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1700 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-17 01:20:58,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:20:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2021-11-17 01:20:59,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:21:02,581 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2021-11-17 01:21:02,581 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:21:02,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738633171] [2021-11-17 01:21:02,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738633171] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-17 01:21:02,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:21:02,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 22 [2021-11-17 01:21:02,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075889582] [2021-11-17 01:21:02,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:21:02,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 01:21:02,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:21:02,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 01:21:02,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-11-17 01:21:02,583 INFO L87 Difference]: Start difference. First operand 19604 states and 26097 transitions. Second operand has 12 states, 10 states have (on average 15.1) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 01:21:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:21:06,827 INFO L93 Difference]: Finished difference Result 43482 states and 58938 transitions. [2021-11-17 01:21:06,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 01:21:06,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 15.1) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) Word has length 300 [2021-11-17 01:21:06,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:21:06,902 INFO L225 Difference]: With dead ends: 43482 [2021-11-17 01:21:06,902 INFO L226 Difference]: Without dead ends: 23946 [2021-11-17 01:21:06,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-11-17 01:21:06,947 INFO L933 BasicCegarLoop]: 2750 mSDtfsCounter, 1406 mSDsluCounter, 25740 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 28490 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-17 01:21:06,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1407 Valid, 28490 Invalid, 1149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [401 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-17 01:21:06,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23946 states. [2021-11-17 01:21:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23946 to 19636. [2021-11-17 01:21:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19636 states, 14221 states have (on average 1.2815554461711554) internal successors, (18225), 14511 states have internal predecessors, (18225), 3925 states have call successors, (3925), 1494 states have call predecessors, (3925), 1489 states have return successors, (3987), 3869 states have call predecessors, (3987), 3924 states have call successors, (3987) [2021-11-17 01:21:07,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19636 states to 19636 states and 26137 transitions. [2021-11-17 01:21:07,953 INFO L78 Accepts]: Start accepts. Automaton has 19636 states and 26137 transitions. Word has length 300 [2021-11-17 01:21:07,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:21:07,953 INFO L470 AbstractCegarLoop]: Abstraction has 19636 states and 26137 transitions. [2021-11-17 01:21:07,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 15.1) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 01:21:07,953 INFO L276 IsEmpty]: Start isEmpty. Operand 19636 states and 26137 transitions. [2021-11-17 01:21:07,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-17 01:21:07,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:21:07,968 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:21:08,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-11-17 01:21:08,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:21:08,177 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:21:08,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:21:08,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1214322840, now seen corresponding path program 1 times [2021-11-17 01:21:08,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:21:08,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30163066] [2021-11-17 01:21:08,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:21:08,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:21:08,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:21:08,180 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:21:08,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-17 01:21:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:21:09,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 01:21:09,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:21:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2021-11-17 01:21:10,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:21:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2021-11-17 01:21:11,308 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:21:11,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30163066] [2021-11-17 01:21:11,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30163066] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-17 01:21:11,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:21:11,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-11-17 01:21:11,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414318373] [2021-11-17 01:21:11,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:21:11,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:21:11,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:21:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:21:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-17 01:21:11,310 INFO L87 Difference]: Start difference. First operand 19636 states and 26137 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:21:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:21:13,251 INFO L93 Difference]: Finished difference Result 43620 states and 59198 transitions. [2021-11-17 01:21:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 01:21:13,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 321 [2021-11-17 01:21:13,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:21:13,331 INFO L225 Difference]: With dead ends: 43620 [2021-11-17 01:21:13,331 INFO L226 Difference]: Without dead ends: 24052 [2021-11-17 01:21:13,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:21:13,367 INFO L933 BasicCegarLoop]: 2814 mSDtfsCounter, 945 mSDsluCounter, 10092 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 12906 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:21:13,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [945 Valid, 12906 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-17 01:21:13,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24052 states. [2021-11-17 01:21:14,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24052 to 19676. [2021-11-17 01:21:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19676 states, 14253 states have (on average 1.280923314389953) internal successors, (18257), 14543 states have internal predecessors, (18257), 3925 states have call successors, (3925), 1494 states have call predecessors, (3925), 1497 states have return successors, (4051), 3877 states have call predecessors, (4051), 3924 states have call successors, (4051) [2021-11-17 01:21:14,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19676 states to 19676 states and 26233 transitions. [2021-11-17 01:21:14,306 INFO L78 Accepts]: Start accepts. Automaton has 19676 states and 26233 transitions. Word has length 321 [2021-11-17 01:21:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:21:14,307 INFO L470 AbstractCegarLoop]: Abstraction has 19676 states and 26233 transitions. [2021-11-17 01:21:14,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 01:21:14,307 INFO L276 IsEmpty]: Start isEmpty. Operand 19676 states and 26233 transitions. [2021-11-17 01:21:14,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-11-17 01:21:14,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:21:14,323 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:21:14,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-17 01:21:14,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:21:14,524 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:21:14,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:21:14,525 INFO L85 PathProgramCache]: Analyzing trace with hash -545732027, now seen corresponding path program 1 times [2021-11-17 01:21:14,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:21:14,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417925899] [2021-11-17 01:21:14,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:21:14,526 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:21:14,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:21:14,527 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:21:14,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-17 01:21:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:21:16,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-17 01:21:16,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:21:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2021-11-17 01:21:16,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:21:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2021-11-17 01:21:17,940 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:21:17,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417925899] [2021-11-17 01:21:17,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417925899] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-17 01:21:17,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:21:17,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-17 01:21:17,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910312560] [2021-11-17 01:21:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:21:17,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:21:17,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:21:17,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:21:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:21:17,943 INFO L87 Difference]: Start difference. First operand 19676 states and 26233 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-17 01:21:20,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:21:20,642 INFO L93 Difference]: Finished difference Result 48242 states and 66450 transitions. [2021-11-17 01:21:20,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:21:20,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 341 [2021-11-17 01:21:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:21:20,728 INFO L225 Difference]: With dead ends: 48242 [2021-11-17 01:21:20,728 INFO L226 Difference]: Without dead ends: 28634 [2021-11-17 01:21:20,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-17 01:21:20,761 INFO L933 BasicCegarLoop]: 2561 mSDtfsCounter, 1484 mSDsluCounter, 12227 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 14788 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-17 01:21:20,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1622 Valid, 14788 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-17 01:21:20,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28634 states. [2021-11-17 01:21:21,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28634 to 19696. [2021-11-17 01:21:21,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19696 states, 14273 states have (on average 1.2805296714075527) internal successors, (18277), 14559 states have internal predecessors, (18277), 3925 states have call successors, (3925), 1494 states have call predecessors, (3925), 1497 states have return successors, (4051), 3881 states have call predecessors, (4051), 3924 states have call successors, (4051) [2021-11-17 01:21:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19696 states to 19696 states and 26253 transitions. [2021-11-17 01:21:21,620 INFO L78 Accepts]: Start accepts. Automaton has 19696 states and 26253 transitions. Word has length 341 [2021-11-17 01:21:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:21:21,620 INFO L470 AbstractCegarLoop]: Abstraction has 19696 states and 26253 transitions. [2021-11-17 01:21:21,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-17 01:21:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 19696 states and 26253 transitions. [2021-11-17 01:21:21,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-11-17 01:21:21,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:21:21,639 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:21:21,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-17 01:21:21,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:21:21,843 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:21:21,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:21:21,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1577196466, now seen corresponding path program 2 times [2021-11-17 01:21:21,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:21:21,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934294185] [2021-11-17 01:21:21,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 01:21:21,846 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:21:21,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:21:21,847 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:21:21,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-17 01:21:22,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-17 01:21:22,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 01:21:22,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 01:21:22,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:21:22,974 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2021-11-17 01:21:22,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:21:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2021-11-17 01:21:23,493 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:21:23,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934294185] [2021-11-17 01:21:23,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934294185] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:21:23,493 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:21:23,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-17 01:21:23,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630109124] [2021-11-17 01:21:23,494 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:21:23,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 01:21:23,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:21:23,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 01:21:23,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:21:23,495 INFO L87 Difference]: Start difference. First operand 19696 states and 26253 transitions. Second operand has 8 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 4 states have call successors, (46), 4 states have call predecessors, (46), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2021-11-17 01:21:24,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:21:24,280 INFO L93 Difference]: Finished difference Result 20766 states and 27794 transitions. [2021-11-17 01:21:24,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 01:21:24,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 4 states have call successors, (46), 4 states have call predecessors, (46), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 361 [2021-11-17 01:21:24,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:21:24,332 INFO L225 Difference]: With dead ends: 20766 [2021-11-17 01:21:24,332 INFO L226 Difference]: Without dead ends: 20763 [2021-11-17 01:21:24,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-17 01:21:24,343 INFO L933 BasicCegarLoop]: 2203 mSDtfsCounter, 64 mSDsluCounter, 13034 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 15237 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:21:24,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 15237 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:21:24,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20763 states. [2021-11-17 01:21:25,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20763 to 19760. [2021-11-17 01:21:25,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19760 states, 14321 states have (on average 1.279519586621046) internal successors, (18324), 14607 states have internal predecessors, (18324), 3925 states have call successors, (3925), 1510 states have call predecessors, (3925), 1513 states have return successors, (4051), 3881 states have call predecessors, (4051), 3924 states have call successors, (4051) [2021-11-17 01:21:25,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19760 states to 19760 states and 26300 transitions. [2021-11-17 01:21:25,117 INFO L78 Accepts]: Start accepts. Automaton has 19760 states and 26300 transitions. Word has length 361 [2021-11-17 01:21:25,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:21:25,117 INFO L470 AbstractCegarLoop]: Abstraction has 19760 states and 26300 transitions. [2021-11-17 01:21:25,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 4 states have call successors, (46), 4 states have call predecessors, (46), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2021-11-17 01:21:25,117 INFO L276 IsEmpty]: Start isEmpty. Operand 19760 states and 26300 transitions. [2021-11-17 01:21:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-17 01:21:25,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:21:25,156 INFO L514 BasicCegarLoop]: trace histogram [20, 11, 11, 11, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:21:25,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-17 01:21:25,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:21:25,362 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:21:25,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:21:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1586774756, now seen corresponding path program 1 times [2021-11-17 01:21:25,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:21:25,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165425906] [2021-11-17 01:21:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:21:25,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:21:25,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:21:25,366 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:21:25,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-17 01:21:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:21:27,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 2183 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 01:21:27,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:21:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2021-11-17 01:21:28,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:21:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2021-11-17 01:21:28,856 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:21:28,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165425906] [2021-11-17 01:21:28,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165425906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:21:28,856 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:21:28,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-17 01:21:28,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41939404] [2021-11-17 01:21:28,857 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:21:28,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 01:21:28,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:21:28,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 01:21:28,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-17 01:21:28,858 INFO L87 Difference]: Start difference. First operand 19760 states and 26300 transitions. Second operand has 10 states, 10 states have (on average 23.5) internal successors, (235), 10 states have internal predecessors, (235), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-17 01:21:30,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:21:30,812 INFO L93 Difference]: Finished difference Result 40812 states and 54452 transitions. [2021-11-17 01:21:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 01:21:30,813 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.5) internal successors, (235), 10 states have internal predecessors, (235), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 404 [2021-11-17 01:21:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:21:30,871 INFO L225 Difference]: With dead ends: 40812 [2021-11-17 01:21:30,871 INFO L226 Difference]: Without dead ends: 21120 [2021-11-17 01:21:30,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 799 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-11-17 01:21:30,914 INFO L933 BasicCegarLoop]: 2141 mSDtfsCounter, 313 mSDsluCounter, 12615 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 14756 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:21:30,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 14756 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-17 01:21:30,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21120 states. [2021-11-17 01:21:31,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21120 to 19912. [2021-11-17 01:21:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19912 states, 14457 states have (on average 1.277996818150377) internal successors, (18476), 14759 states have internal predecessors, (18476), 3925 states have call successors, (3925), 1510 states have call predecessors, (3925), 1529 states have return successors, (4075), 3881 states have call predecessors, (4075), 3924 states have call successors, (4075) [2021-11-17 01:21:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19912 states to 19912 states and 26476 transitions. [2021-11-17 01:21:31,744 INFO L78 Accepts]: Start accepts. Automaton has 19912 states and 26476 transitions. Word has length 404 [2021-11-17 01:21:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:21:31,745 INFO L470 AbstractCegarLoop]: Abstraction has 19912 states and 26476 transitions. [2021-11-17 01:21:31,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.5) internal successors, (235), 10 states have internal predecessors, (235), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-17 01:21:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 19912 states and 26476 transitions. [2021-11-17 01:21:31,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-11-17 01:21:31,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:21:31,789 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:21:31,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-17 01:21:32,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:21:32,012 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:21:32,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:21:32,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1794844811, now seen corresponding path program 1 times [2021-11-17 01:21:32,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:21:32,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936864874] [2021-11-17 01:21:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:21:32,015 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:21:32,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:21:32,016 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:21:32,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-17 01:21:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:21:34,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2511 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-17 01:21:34,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:21:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2021-11-17 01:21:35,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:21:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2021-11-17 01:21:38,530 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:21:38,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936864874] [2021-11-17 01:21:38,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936864874] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:21:38,530 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:21:38,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-17 01:21:38,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593247118] [2021-11-17 01:21:38,530 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:21:38,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:21:38,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:21:38,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:21:38,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:21:38,531 INFO L87 Difference]: Start difference. First operand 19912 states and 26476 transitions. Second operand has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 4 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2021-11-17 01:21:39,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:21:39,342 INFO L93 Difference]: Finished difference Result 39756 states and 52944 transitions. [2021-11-17 01:21:39,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 01:21:39,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 4 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) Word has length 510 [2021-11-17 01:21:39,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:21:39,394 INFO L225 Difference]: With dead ends: 39756 [2021-11-17 01:21:39,394 INFO L226 Difference]: Without dead ends: 19912 [2021-11-17 01:21:39,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 1014 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:21:39,435 INFO L933 BasicCegarLoop]: 2113 mSDtfsCounter, 0 mSDsluCounter, 6335 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8448 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:21:39,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8448 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2021-11-17 01:21:39,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19912 states. [2021-11-17 01:21:40,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19912 to 19912. [2021-11-17 01:21:40,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19912 states, 14457 states have (on average 1.2768900878467178) internal successors, (18460), 14759 states have internal predecessors, (18460), 3925 states have call successors, (3925), 1510 states have call predecessors, (3925), 1529 states have return successors, (4075), 3881 states have call predecessors, (4075), 3924 states have call successors, (4075) [2021-11-17 01:21:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19912 states to 19912 states and 26460 transitions. [2021-11-17 01:21:40,334 INFO L78 Accepts]: Start accepts. Automaton has 19912 states and 26460 transitions. Word has length 510 [2021-11-17 01:21:40,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:21:40,334 INFO L470 AbstractCegarLoop]: Abstraction has 19912 states and 26460 transitions. [2021-11-17 01:21:40,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 4 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2021-11-17 01:21:40,334 INFO L276 IsEmpty]: Start isEmpty. Operand 19912 states and 26460 transitions. [2021-11-17 01:21:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2021-11-17 01:21:40,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:21:40,367 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:21:40,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-17 01:21:40,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:21:40,568 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:21:40,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:21:40,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1078086140, now seen corresponding path program 1 times [2021-11-17 01:21:40,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 01:21:40,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060950761] [2021-11-17 01:21:40,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:21:40,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 01:21:40,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 01:21:40,572 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-17 01:21:40,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-17 01:21:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:21:42,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 2531 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 01:21:42,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:21:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1283 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-17 01:21:44,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:21:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1283 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2021-11-17 01:21:45,134 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 01:21:45,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060950761] [2021-11-17 01:21:45,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060950761] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 01:21:45,134 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:21:45,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-17 01:21:45,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645769849] [2021-11-17 01:21:45,135 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 01:21:45,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:21:45,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 01:21:45,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:21:45,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:21:45,136 INFO L87 Difference]: Start difference. First operand 19912 states and 26460 transitions. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-17 01:21:45,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:21:45,635 INFO L93 Difference]: Finished difference Result 27968 states and 37033 transitions. [2021-11-17 01:21:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 01:21:45,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 517 [2021-11-17 01:21:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:21:45,641 INFO L225 Difference]: With dead ends: 27968 [2021-11-17 01:21:45,641 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 01:21:45,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1033 GetRequests, 1028 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:21:45,685 INFO L933 BasicCegarLoop]: 1725 mSDtfsCounter, 10 mSDsluCounter, 6876 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8601 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:21:45,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 8601 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 01:21:45,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 01:21:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 01:21:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 01:21:45,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 01:21:45,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 517 [2021-11-17 01:21:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:21:45,692 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 01:21:45,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-17 01:21:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 01:21:45,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 01:21:45,694 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 01:21:45,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-17 01:21:45,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 01:21:45,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15